How to Write a Compare and Contrast Essay

How to Write a Compare and Contrast Essay We compare and contrast things all the time. Do we want this camera or that one? Should we get a dog or a cat (or maybe both)? Do we want to major in English or Biochemistry? Do we want pizza or tacos for dinner? You get the idea.When your teacher assigns you a compare and contrast essay, essentially what he or she wants you to learn is how to be presented with two different ideas, to evaluate them, and to determine what they have in common, what they dont have in common, and how the ideas work together (or dont). Being able to compare two different ideas and to evaluate them in a research-based way will serve you well in the future because we tend to compare stuff a lot in everyday life.Although the style and structure of a compare and contrast essay is a bit different from your standard research paper or argumentative essay, it still uses the same concepts for a common goal: to organize your thoughts and research onto the page in a way that the reader will understand and, hopefully , to provide some new insight.The structure of the paper will be somewhat the same as a typical essay. For example, you will still need to have a thesis statement, but your body paragraphs will be just a little different from, say, an expository essay. Because youre looking at two different subjects and how they are different (or similar), you will need to use an organizational structure to effectively compare and contrast. There are two ways to do this: You can use either the block method (which means that you are writing subject by subject in the paragraphs) or the point by point method (which means that the paragraphs will be organized around different points youre trying to make about the two different subjects).Last, you will still need a conclusion. The conclusion will still be a summary of your main subjects, but the conclusion will be an evaluation of what we learned by examining these two different subjects. Which is better? Which is worse? Why did we even compare these two things?Now that we know what components are in a compare and contrast essay, lets see how this might work in both the block method and the point by point method by looking at some sample outlines.The block methodIn a compare and contrast essay, the block method is one where you discuss everything about one topic at a time. This method might be preferable if you have a really in-depth discussion of a subject and you think it might be too confusing for the reader to keep going back and forth between the two subjects.For example, lets say that you are writing a paper on the differences between Los Angeles and San Francisco. Heres what that might look like using the block method.IntroductionA brief introduction to the topic When you are thinking about making a trip to California, you may be torn between visiting Los Angeles or San Francisco. They may both be large cities in California, but they couldnt have more different vibes or different types of activities to do while youre visitin g.Your thesis statement While Los Angeles certainly has a lot to offer, San Francisco has an old-world charm that cant be replicated and should be the choice of travelers considering a visit to the Golden State.Body paragraphsTopic sentence about Subject A From picture-perfect scenery like the Golden Gate Bridge to historic districts like Haight Ashbury to fun activities like the California Academy of Sciences, its unlikely that youll ever have a dull moment in San Francisco.Claim 1 about Subject A Here we would say something about how beautiful San Francisco is and how there are several opportunities for outdoor activities, and then mention how nothing can really top seeing the Golden Gate Bridge in person.Claim 2 about Subject A On this claim, we would probably write in-depth about the history of San Francisco and how districts like Haight Ashbury have a true significance in not just California, but the whole country.Claim 3 about Subject A On this final claim for Subject A, we wo uld write about how fun San Francisco is. We would mention the California Academy of Sciences and how its basically several museums rolled into one. We would also probably mention Musée Mécanique, which is located right in the heart of Fishermans Wharf and is filled with early 20th century coin-operated games. At the end of claim 3, we would also want to have a transition sentence so that it doesnt look awkward when we immediately start talking about Los Angeles in the Subject B paragraph(s).Topic sentence about Subject B Los Angeles has plenty to do in entertainment and has many wonderful restaurants, but it just doesnt have the same charm as San Francisco and it is much more difficult to get around.Claim 1 about Subject B On this first claim about Subject B, we would probably list all of the merits of visiting Los Angeles. We would mention all of the theme parks like Universal Studios, Disneyland, and the Santa Monica Pier. We would mention how Los Angeles is typically warm and sunny, which makes it fun to go to the beach there during the summers. We would also mention Los Angeles fabulous restaurants in Koreatown and in Venice Beach.Claim 2 about Subject B On this second claim about Subject B, we would talk about how many visitors want to visit Hollywood when theyre in Los Angeles, but often they dont realize how difficult it is to park there and how its grittier than what you would expect.Claim 3 about Subject B On this last claim about Subject B, we would discuss just how difficult it is to get around Los Angeles. Though public transportation is available, it still has a long way to go and its almost a necessity to rent a car when youre in town. Plus, the traffic can get pretty bad on the 405. At the end of claim 3, we would want to put a transition sentence so that we can get into the comparison paragraph without its sounding too weird.Topic sentence that connects Subject A and Subject B Although clearly both San Francisco and Los Angeles have their me rits for visiting, if you have to make a choice the answer is clearly San Francisco.What is similar between these two subjects? Here we would probably write something about how both cities are institutions in the state of California and that youll likely have a good time in both places.What is dissimilar? On this point, we would probably write about how Northern California and Southern California have two completely different vibes and that, ultimately, San Francisco has more cultural, historical, and fun things to do than Los Angeles does.ConclusionWhat conclusions can we draw from comparing these two subjects? Here we would say something about why its important to make sure you carefully consider where you want to go on vacation, and make sure its the right place for you because you want to guarantee a fun time if youll be paying money to visit somewhere. Clearly San Francisco would be the better end of the deal because we would have so much fun stuff to do without all the stress of driving everywhere. We would have more time to explore the city.Any further research required or suggested for the future? Here we might say something about how you should always compare places when you are thinking about going on vacation.Is there a third thing that we should be comparing these two subjects to? We could briefly mention how there are a lot of other fun cities to go to in California like San Diego, Santa Barbara, Monterey, etc.The point by point methodThe point by point method of writing a compare and contrast essay is a way to discuss the contrasting differences between your two points throughout your paper. This keeps the comparison fresh in the readers mind, which might be preferable with some subjects over others.Lets see what that might look like using our San Francisco vs. Los Angeles topic.IntroductionA brief introduction to the topic (This would be similar to the block method.) When you are thinking about making a trip to California, you may be torn betwee n visiting Los Angeles or San Francisco. They may both be large cities in California, but they couldnt have more different vibes or different types of activities to do while youre visiting.Your thesis statement (This also would be similar to the block method.) While Los Angeles certainly has a lot to offer, San Francisco has an old-world charm that cant be replicated, and it should be the choice of travelers who are considering a visit to the Golden State.Body paragraphsFirst Difference between Subject A and Subject B When thinking about taking a vacation to California, its important to think about what kind of transportation youll need.Detail 1 Here we would say something about how San Francisco has much more public transportation than Los Angeles does.Detail 2 Here we would mention how bad the traffic is in Los Angeles and how you can avoid that in San Francisco because of more walkability there.Second Difference between Subject A and Subject B San Francisco generally has more cha rm than Los Angeles.Detail 1 Here we would write in-depth about the history of San Francisco and how districts like Haight Ashbury have a true significance in not just California, but the whole country.Detail 2 Here we would talk about how many tourists want to visit Hollywood when theyre in Los Angeles, but often they dont realize how difficult it is to park there and how its grittier than what you would expect.Third Difference between Subject A and Subject B There are more fun things to do within a smaller area in San Francisco.Detail 1 We would write about how many fun things there are to do in San Francisco. We would mention the California Academy of Sciences and how its basically several museums rolled into one. We would also probably mention Musée Mécanique, which is located right in the heart of Fishermans Wharf and is filled with early 20th century coin-operated games.Detail 2 Here we would list all the fun things to do in Los Angeles like Venice Beach, Universal Studios, and Santa Monica Pier, but talk about how spread out all that is.Conclusion (This would essentially be the same as the block method.)What conclusions can we draw from comparing these two subjects? Here we would say something about why its important to make sure you carefully consider where you want to go on vacation, and make sure its the right place for you because you want to guarantee a fun time if youll be paying money to visit somewhere. Clearly San Francisco would be the better end of the deal because we would get so much fun stuff to do without all the stress of driving everywhere. We would get more time to explore the city.Any further research required or suggested for the future? Here we might say something about how you should always compare places when you are thinking about going on vacation.Is there a third thing that we should be comparing these two subjects to? We could briefly mention how there are a lot of other fun cities to go to in California such as San Diego, S anta Barbara, Monterey, etc.Still have questions?If youre still confused about how you would write a compare and contrast essay, be sure to speak with your teacher for additional instructions and advice. Have you written a compare and contrast essay and are unsure if youre following instructions or if its grammatically correct? Its always important to have someone look over your paper like a parent, tutor, or friend, or to seek out the assistance of a professional editor. Having someone look over your paper will ensure that everything makes sense and can help you with revisions.

Body Image And Eating Disorders - 1375 Words

Body Image and Eating Disorders Females and males are both under pressure to conform to societies idea of beauty. Women feel pressure to be thin, big chested, while men feel the urge to be lean and muscular. Society portrays these images of thinness and muscularity through media, magazines, and even toys. These images can have an impact on peoples body images, which can lead to eating disorders such as Anorexia nervosa and Bulimia nervosa. Body Image is the way you see your body, and how you feel about your appearance. There are four key proponents associated with Body Image. The first aspect is Perceptual Body Image. This is how you see your body, this may not always be a correct representation of how one really looks. For example, one may see themselves as fat, when in reality they’re thin. The next aspect is Affective Body Image, this is how you feel about your body. Third is Cognitive Body Image, which is how you think about your body. The final aspect is Behavioral Body Image, which is â€Å"behaviors in which you engage as a result of your Body Image†. Body Image has two forms. The two forms are Negative and Positive Body Image. Positive Body Image â€Å"occurs when a person is able to accept, appreciate, and respect their body Image. It is important because its one of the protective factors which can make a person more resilient to developing eating disorders†. People with positive body image often have high self esteem, self acceptance, and a happy outlook on life.Show MoreRelatedEating Disorders And The Body Image1573 Words   |  7 Pagesto maintain a perfect physical body image in hopes of receiving approval, love, and happiness. The need to maintain this perfect image is supported by society and the media with a mirage of messages that you can be happy if you obtain this perfect image. Society s ideals of what the human body should look like have caused numerous people to develop abnormal eating patterns in a contempt to conform and seek society s approval o f their body image. An eating disorder is an ailment that causes severeRead MoreBody Image And Eating Disorders Essay1531 Words   |  7 Pagesexpectation, and yet our young women are expected to emulate this image. The result of such pressures can prove to be too much to handle and young women often resort to pathogenic dieting and experience body image and eating disorders. The increase in mental health disorders associated with body image in teen girls attributed to the unrealistic standards set in magazines targeted toward young women, therefore magazines need to use images that reflect the realities of the target audience and should notRead MoreEating Disorders And Body Image Essay1115 Words   |  5 PagesKarlye Weber AMST 3723 Dr. Carreiro 15 November 2016 Typically when covering the topic of eating disorders and body image dissatisfaction athletes and young women are the center of research and are stereotyped to be the only groups of people who suffer from self-image issues. In â€Å"The Hidden Faces of Eating Disorders and Body Image,† authors Justine Reels and Katherine Beals look to breakdown the stereotypes and dig deeper into the issues that cross over the borders of ethnicity, age and genderRead MoreEating Disorders And Body Image1613 Words   |  7 Pages Eating disorders and body image Cenia Xu Father Michael Mcgivney Catholic Academy Effects of Eating disorders have on teenagers Every day, teenagers are surrounded by different messages from different sources that impact the way they feel about the way they look. For some, poor body image is a sign of a serious problem: an eating disorder. Eating disorders are not just about food.The eating disorders containRead MoreEating Disorders, Body Image Gender Essay1721 Words   |  7 PagesRIGHTS (HE6) ASSIGNMENT EATING DISORDERS, BODY IMAGE GENDER Submitted to: Dr. Sivakami Muthusamy Centre for Health and Social Sciences School of Health Systems Studies, TISS, Mumbai. Submitted by: Pallavi Muraleedharan Enrollment Number: M2015HE018 Master of Health Administration (2015-17) Tata Institute of Social Sciences, Mumbai Date: 16/08/2016 INTRODUCTION Eating disorders, body image and gender remain as a very complex interlinked web. Eating disorders affect people from all demographicsRead MoreEating Disorders And Body Image Issues1655 Words   |  7 PagesEating disorders: noun. A group of psychological ailments characterized by intense fear of becoming obese, distorted body image, and prolonged food refusal (anorexia nervosa) and/or binge eating followed by purging through induced vomiting, heavy exercise, or use of laxatives (bulimia nervosa).These ailments are not pretty. In this society, where only the fit and thin bodies are accepted and appreciated, eating disorders are more common than they should be. Children, starting at a young age, seeRead MoreEating Disorders and Negative Body Images662 Words   |  3 Pagesfaced with eating disorders and negative body images everywhere they go. Celebrities promote unrealistic standards and display what the â€Å"acceptable† body is. Because of our stick thin role models we hav e in the media today much of our society holds their own body image to the unobtainable standards of celebrities. People are bombarded with images of what’s â€Å"sexy† instead of what’s healthy (Helmich). In a world based around celebrities and media, shouldn’t they be promoting a healthy body image insteadRead MoreBody Image, Eating Disorders and Advertising3063 Words   |  13 PagesBody Image, Eating Disorders and Advertising Body Image, Eating Disorders and Advertising We have all heard, â€Å"you are what you eat†; however, and maybe more importantly, you want to be what you watch or read. How does today’s advertising impact on your body image? The shaping of our concept of the ideal body image begins at a young age and continues though adulthood. It begins with our toys; that first Barbie you received on your sixth birthday; the one with the long blond flowing hairRead MoreEating Disorders And Body Image Issues2801 Words   |  12 PagesIntroduction Eating disorders (ED) and body image issues are increasingly becoming more and more common among women in Western societies (Stice, 2002). Over the past couple years the prevalence of bulimia nervosa (BN) and has steadily increased, 3 out of 100 women that are now diagnosed with the disorder (Botta, 1999; Hesse-Biber et. al, 2006). This brings into question wether it is in fact BN that is increasing, our awareness or the rising numbers of other comorbid disorders in Western societiesRead MoreTeen s Body Image And Eating Disorders996 Words   |  4 PagesTeen Girls’ Body Image and Eating Disorders In today’s society, many adolescent girls are dissatisfied with their body image due to comparing themselves to the media’s unrealistic ideal thin body. Since they grow up in a world filled with mass media such as television, films, magazines, movies, music, newspaper and the Internet, it is very easy to come across this ideal body image (Morris Katzman, 2003). As teen girls associate with this ideal thinness they tend to be dissatisfied with their

The Legacy Of Abraham Lincoln - 1817 Words

Men in history are generally remembered for their actions, not for their words. As I sit here, thinking about our country’s founding fathers who helped form our nation, I cannot help but think about their qualities and how each of them contributed to their vision of America. I reminisce on George Washington’s bravery, Thomas Jefferson’s genuity, John Adam’s determination, and Ben Franklin’s ambition when it came to founding our country and declaring us separate from King George III. There is one man, however, I think about and respect more than any of these other men: Abraham Lincoln, the man who freed the slaves. Abraham Lincoln, born February 12, 1809 in Hodgenville, Kentucky, is widely considered to be one of the greatest presidents to have ever been in office. During the course of his presidency, Lincoln not only lead the Union during the Civil War and tried to unify the nation through a harsh time of crisis, conflict, and bloodshed: through his beliefs, his example and his legacy, Lincoln freed the slaves, gave them the right to vote, and made them legal citizens of the United States. Where did Lincoln’s sympathy for African citizens come from? Why did he oppose slavery, when so many others endorsed this practice? Perhaps it was in his upbringing. Abraham was the son of Thomas and Nancy Lincoln, who were strong Christians following in the faith of ï ¿ ¼the Separate Baptist Church. This faith upheld high moral standards and believed dancing, alcohol, and slavery to beShow MoreRelatedThe Legacy Of Abraham Lincoln1958 Words   |  8 PagesLeadership and Legacy: Background Research Paper Abraham Lincoln By:Audrey Knight Introduction Great leader and main topic Abraham Lincoln lived in the 1800’s where he accomplished many things in his 54 years of life. He lived in the U.S. through several major events in history and left a legacy that will never be forgotten. As the 16th president of the United States he brought about the emancipation of slavery, preserved the Union during the Civil War, and served the people. His heroic leadershipRead MoreThe Legacy Of Abraham Lincoln933 Words   |  4 PagesSynopsis Regarded as one of the United States of America greatest heroes, Abraham Lincoln is famous for his unique appeal and incredible impact on the nation. He was the United States 16th president. His story is an astounding one rising from a humble background to become the most powerful man the land. However, at the time when his country needed him most, a tragic and sudden death strikes him. He is assassinated. He left a legacy that endured due to his unique humane personality as a leader of the unionRead MoreThe Legacy Of Abraham Lincoln1217 Words   |  5 PagesAbraham Lincoln was born in the year 1809 on February 12th in the town of Hardin County, Kentucky to Thomas and Nancy Lincoln. Growing up Lincoln had no proper education, consequently he read books and educated himself. During Lincoln’s young adult years, he worked a various number of jobs as a shopkeeper, surveyor, and a postmaster. In 1832, Lincoln became a captain of the Hawk War against the Native Americans. Shortly a fter the war was over, he began his political career and was elected to theRead MoreThe Legacy Of Abraham Lincoln Essay2383 Words   |  10 PagesReport Name Abraham Lincoln paved a path of equality and freedom for slaves and people of the 1800s as well as having a major impact on society and government; Abraham Lincoln s engagement with the public people skyrocketed his career as being a president and a suitable leader to the people of the United States of America. Born on February 12th, 1809 in Hardin County, Kentucky, Abraham Lincoln in his later years would be known as one of the most influential leaders of all time. Abraham Lincoln was bornRead MoreThe Legacy Of Abraham Lincoln Essay2382 Words   |  10 PagesAbraham Lincoln paved a path of equality and freedom for slaves and people of the 1800s as well as having a major impact on society and government; Abraham Lincoln s engagement with the public people skyrocketed his career as being a president and a suitable leader to the people of the United States of America. Born on February 12th, 1809 in Hardin County, Kentucky, Abraham Lincoln in his later years would be known as one of the most influential leaders of all time. Abraham Lincoln was born intoRead MoreThe Legacy Of Abraham Lincoln1826 Words   |  8 Pages Abraham Lincoln’s victory in the 1860 presidential election, was a beacon of hope for many slaves in America. Becoming the 16th president of the United States serving from 1861 to 1865, Abraham Lincoln is one of America’s most celebrated heroes. Holding office during the years of the American Civil War, Lincoln preserved the Union, while creating a new era that consisted of emancipated African American slaves. After winning a victory at the Battle of Antietam on September 17, 1862, he issuedRead MoreLegacy Of Abraham Lincoln s Legacy Essay1582 Words   |  7 PagesLegacy Leader: Abraham Lincoln A legacy leader is someone who has left a positive and lasting impression in society due to his or her leadership qualities and/or traits. Abraham Lincoln is a prime example of a legacy leader due to the leadership traits he displayed throughout his presidency. Abraham Lincoln was the 16th President of the United States. He exhibited great leadership qualities such as integrity, duty, and selfless service. Abraham Lincoln’s Emancipation Proclamation and hisRead MoreThe Legacy Of Abraham Lincoln1500 Words   |  6 PagesAbraham Lincoln has been studied more than any other in American history. In fact, over 15,000 different books have been written about our 16th president. Throughout the pages of these books, President Lincoln is affectionately referred to by many different names, such as the Railsplitter, Honest Abe, and the Great Emancipator. A vast majority of these written works honor Lincoln as one of our greatest presidents. Not everyone feels that way, however. Charles Adams, in his book, When in the CourseRead MoreThe Legacy Of Abraham Lincoln1292 Words   |  6 PagesAbraham Lincoln has been called the greatest president in all of American history. His principles were dedicated to the survival of the United States during one of the most gruesome and bloody wars in the country s history, the American Civil War. During his presidency, he fought for the emancipation of slaves because he believed the institution of slavery was morally unjust. His ideals, which appealed to the founding principles of the country, energized and mobilized the union and kept it aliveRead MoreThe Legacy Of Abraham Lincoln928 Words   |  4 PagesP. Thomas, Abraham Lincoln: A Biography (Southern Illinois University Press, 2008). †¢ David Herbert Donald, We Are Lincoln Men: Abraham Lincoln and His Friends (Simon Schuster, 2004). †¢ Roy Morris Jr., The Long Pursuit: Abraham Lincoln’s Thirty-Year Struggle with Stephen Douglas for the Heart and Soul of America (Bison Books, 2010). 5. Similar Articles: †¢ Mary Frances Berry, â€Å"Lincoln and Civil Rights for Blacks,† Volume 2, Issue 1, 1980, pp. 46-57 (Journal of The Abraham Lincoln Association)

Differences between country and city living Free Essays

Do you want to live in country or city? These two options are very dissimilar, although in both you can learn a lot. These differences include style of living, benefits and social life. The first difference is style of living. We will write a custom essay sample on Differences between country and city living or any similar topic only for you Order Now In the city, the buildings are high and land is scarce and expensive, so city people have to build many houses in a small space. Also, there are buildings with many houses on top of each other. In contrast, in the country, the houses tend to be for a family as there are more houses that are built on the ground next to each other. Another difference between city and country living are the benefits. In the city there are more services offered of all kinds, including the entertainment. Compared with the country where services are limited and there are fewer people, there are often fewer services. In the cities, there re many more benefits than a people who live in the country, such as career advancement opportunities. Work is concentrated in trades such as fishing, farming, mining and timber. While in the city, there are very many different types areas of work and a person can perform many trades. The last difference is the social life. The social life in the city is very diverse because it has many options. Young people have friends getting together to go to the movies, to go to dancing or to play sports. Children have opportunities to shave whit classmates, going to the park, to the movies and playing at home. On the contrary, the children’s country plays in the river with animals and with the few neighbors who have around your farm. In conclusion, both the life of the country as well as the city have something that attracts and somewhat discouraging. It is not easy to say which is the best or the worst place to live all depends that you want to make and that type of life you want to lead. How to cite Differences between country and city living, Papers

The Bengal Tiger Essays - Tigers, Bengal Tiger, Sundarbans, Felidae

The Bengal Tiger The Bengal tiger is a carnivorous, mammal primarily from India. It lives in habitats such as the coniferous Himalayan Forest, the mangroves of the Sunderbans, the hills of the Indian Peninsula, or the forests of Rajasthan and Northern India. At one time Bengal tigers were scattered throughout Asia. Now they are generally found in India and some regions of Bangledesh, Bhutan, Nepal, and Myanmar. There is approximately 4,000 alive in the wild now, and about 300 are in captivity in zoos around the world. Bengal tiger's are one of the largest and most feared cats in the cat family. An adult tiger can weigh any where from 350 to 550 pounds. The adult males weigh an average of 480 pounds, while the females weigh about 300. Their body lengths are between 6 and 9 feet long! A Bengal tiger hunts primarily deer, wild pigs, water buffalo, birds and other small mammals. When driven from hunger a this tiger will eat almost anything. Crocodiles, lizards, fish, and even humans are eaten by a frustrated Bengal tiger. They eat meat and only meat. Their style of attack is differant from the cheetah's and the lion's; who hunt in open habitats. Although it is a heavier predator than that of the lion and cheetah, it averages about 50 deer a year. Bengal tigers need a wide forest-like areas to hunt their prey. They are known to hunt alone, but have been found to hunt in packs. These tigers are semi-nocturnal, because they sometimes hunt at night. They use flying tactics and force their victims by attacking the throat and spine. Tigers aren't successful hunters, they succeed about once out of every ten attempts. A Bengal tiger is known for its elegant coat and its eyes that seem to stare at you as if you were its prey. Their coat has colors of a reddish tan, shading to white underneath. But the real elegance of its coat is the black stripes which run uneven down its body. Its fur is thick and short. Its facial features consist of long thick whiskers, beady eyes,long sharp pointy teeth, and pointed ears. Its whiskers are used for sensing its prey. These luxurious beady eyes have great vision and are extremely needed for hunting. Its hearing varies with the tiger, the more well developed the ear, the better its hearing will be. Its teeth and jaw are essential for hunting because they are needed to attack the neck of their prey to either snap its neck or to let it bleed to death. Bengal tigers are special because they stand out against other mammals. They have certain characteristics that not many other cats have. They are excellent swimmers, and they take advantage of man-made roads and trails. As cubs their mothers can tell them apart by the white ear spots and even the cub uses this characteristic to find its mother in dim forests. Some studies have even shown that females permit their daughters to take over their home ranges. Humans have turned against the Bengal tigers and as a result they are now endangered of being extinct. About one tiger is killed every day for sport, its coat, and for some sorts of medical remedies. This tiger has had superstition around if for centuries and its legends are getting them killed. Some superstitions include; necklaces made of its claws are said to ward away evil spirits from children, whiskers are used for deadly poisons, aphrodisiacs, or an aid at childbirth. Pelts are in demand for rugs, fur coats, and wall fixtures. The poacher's main demand is for the bones and other parts for medicines. Poachers are killing these tigers everyday and do not even care they might some day become extinct because of what they are doing. Bengal tigers aren't just becoming extinct because of poachers, their environments are being destroyed. Their habitats are being destroyed everyday and the tigers are dieing because of it. By moving a tiger into an area where its not used to living it can destroy the whole eco-system in that area leaving many dead animals other than the Bengal tiger. Certain zoos and programs have been set up to save these tigers

Learn About the Many Varieties of Quartz

Learn About the Many Varieties of Quartz Quartz  is an old German word that originally meant something like hard or tough. It is the most common mineral in the continental crust, and the one with the simplest chemical formula: silicon dioxide or SiO2. Quartz is so common in crustal rocks that its more notable when quartz is missing than when its present.   How to Identify Quartz Quartz comes in many colors and shapes. Once you start studying minerals, though, quartz becomes easy to tell at a glance. You can recognize it by these identifiers: A glassy lusterHardness 7 on the Mohs scale, scratching ordinary glass and all types of steelIt breaks into curved shards rather than flat-faced cleavage fragments, meaning it exhibits conchoidal fracture.Almost always clear or whiteAlmost always present in light-colored rocks and in sandstonesIf found in crystals, quartz always has a hexagonal cross-section like that of a common pencil. Most examples of quartz are clear, frosted, or found as milky-white grains of small size that dont display crystal faces. Clear quartz may appear dark if its in a rock with a lot of dark minerals. Special Quartz Varieties The pretty crystals and vivid colors youll see in jewelry and in rock shops are scarce. Here are some of those precious varieties: Clear, colorless quartz is called rock crystal.Translucent white quartz is called milky quartz.Milky pink quartz is called rose quartz. Its color is thought to be due to various impurities (titanium, iron, manganese) or microscopic inclusions of other minerals.Purple quartz is called amethyst. Its color is due to holes of missing electrons in the crystal in combination with iron impurities.Yellow quartz is called citrine. Its color is due to iron impurities.Green quartz is called praseolite. Iron impurities account for its color, too.Gray quartz is called smoky quartz. Its color is due to holes of missing electrons in combination with aluminum impurities.Brown smoky quartz is called cairngorm and black smoky quartz is called morion.The Herkimer diamond is a form of natural quartz crystal with two pointed ends. Quartz also occurs in a microcrystalline form called chalcedony. Together, both minerals are also referred to as silica. Where Quartz Is Found Quartz is perhaps the most common mineral on our planet. In fact, one test of a meteorite (if you think youve found one)  is to be sure it doesnt have any quartz. Quartz is found in most geologic settings, but it most typically forms sedimentary rocks like sandstone. This is no surprise when you consider that nearly all the sand on Earth is made almost exclusively from grains of quartz. Under mild heat and pressure conditions, geodes can form in sedimentary rocks that are lined with crusts of quartz crystals deposited from underground fluids. In igneous rocks, quartz is the defining mineral of granite. When granitic rocks crystallize deep underground, quartz is generally the last mineral to form and usually has no room to form crystals. But in pegmatites quartz can sometimes form very large crystals, as long as a meter. Crystals also occur in veins associated with hydrothermal (super-heated water) activity in the shallow crust. In metamorphic rocks such as gneiss, quartz becomes concentrated in bands and veins. In this setting, its grains do not take their typical crystal form. Sandstone, too, turns into a massive quartz rock called quartzite. Geological Significance of Quartz Among the common minerals, quartz is the toughest and most inert. It makes up the backbone of good soil, providing mechanical strength and holding open pore space between its grains. Its superior hardness and resistance to dissolution are what make sandstone and granite endure. Thus you could say that quartz holds up the mountains. Prospectors are always alert to veins of quartz because these are signs of hydrothermal activity and the possibility of ore deposits. To the geologist, the amount of silica in a rock is a basic and important bit of geochemical knowledge. Quartz is a ready sign of high silica, for example in rhyolite lava. Quartz is hard, stable, and low in density. When found in abundance, quartz always points to a continental rock because the tectonic processes that have built the Earths continents favor quartz.  As it moves through the tectonic cycle of erosion, deposition, subduction, and magmatism, quartz lingers in the uppermost crust and always comes out on top.

Green Revolution History and Overview

Green Revolution History and Overview The term Green Revolution refers to the renovation of agricultural practices beginning in Mexico in the 1940s. Because of its success in producing more agricultural products there, Green Revolution technologies spread worldwide in the 1950s and 1960s, significantly increasing the number of calories produced per acre of agriculture. History and Development of the Green Revolution The beginnings of the Green Revolution are often attributed to Norman Borlaug, an American scientist interested in agriculture. In the 1940s, he began conducting research in Mexico and developed new disease resistance high-yield varieties of wheat. By combining Borlaugs wheat varieties with new mechanized agricultural technologies, Mexico was able to produce more wheat than was needed by its own citizens, leading to them becoming an exporter of wheat by the 1960s. Prior to the use of these varieties, the country was importing almost half of its wheat supply. Due to the success of the Green Revolution in Mexico, its technologies spread worldwide in the 1950s and 1960s. The United States, for instance, imported about half of its wheat in the 1940s but after using Green Revolution technologies, it became self-sufficient in the 1950s and became an exporter by the 1960s. In order to continue using Green Revolution technologies to produce more food for a growing population worldwide, the Rockefeller Foundation and the Ford Foundation, as well as many government agencies around the world funded increased research. In 1963 with the help of this funding, Mexico formed an international research institution called The International Maize and Wheat Improvement Center. Countries all over the world, in turn, benefited from the Green Revolution work conducted by Borlaug and this research institution. India, for example, was on the brink of mass famine in the early 1960s because of its rapidly growing population. Borlaug and the Ford Foundation then implemented research there and they developed a new variety of rice, IR8, that produced more grain per plant when grown with irrigation and fertilizers. Today, India is one of the worlds leading rice producers and IR8 rice usage spread throughout Asia in the decades following the rices development in India. Plant Technologies of the Green Revolution The crops developed during the Green Revolution were high yield varieties - meaning they were domesticated plants bred specifically to respond to fertilizers and produce an increased amount of grain per acre planted. The terms often used with these plants that make them successful are harvest index, photosynthate allocation, and insensitivity to day length. The harvest index refers to the above-ground weight of the plant. During the Green Revolution, plants that had the largest seeds were selected to create the most production possible. After selectively breeding these plants, they evolved to all have the characteristic of larger seeds. These larger seeds then created more grain yield and a heavier above ground weight. This larger above ground weight then led to an increased photosynthate allocation. By maximizing the seed or food portion of the plant, it was able to use photosynthesis more efficiently because the energy produced during this process went directly to the food portion of the plant. Finally, by selectively breeding plants that were not sensitive to day length, researchers like Borlaug were able to double a crop’s production because the plants were not limited to certain areas of the globe based solely on the amount of light available to them. Impacts of the Green Revolution Since fertilizers are largely what made the Green Revolution possible, they forever changed agricultural practices because the high yield varieties developed during this time cannot grow successfully without the help of fertilizers. Irrigation also played a large role in the Green Revolution and this forever changed the areas where various crops can be grown. For instance, before the Green Revolution, agriculture was severely limited to areas with a significant amount of rainfall, but by using irrigation, water can be stored and sent to drier areas, putting more land into agricultural production - thus increasing nationwide crop yields. In addition, the development of high yield varieties meant that only a few species of say, rice started being grown. In India, for example, there were about 30,000 rice varieties prior to the Green Revolution, today there are around ten - all the most productive types. By having this increased crop homogeneity though the types were more prone to disease and pests because there were not enough varieties to fight them off. In order to protect these few varieties then, pesticide use grew as well. Finally, the use of Green Revolution technologies exponentially increased the amount of food production worldwide. Places like India and China that once feared famine have not experienced it since implementing the use of IR8 rice and other food varieties. Criticism of the Green Revolution Along with the benefits gained from the Green Revolution, there have been several criticisms. The first is that the increased amount of food production has led to overpopulation worldwide. The second major criticism is that places like Africa have not significantly benefited from the Green Revolution. The major problems surrounding the use of these technologies here though are a lack of infrastructure, governmental corruption, and insecurity in nations. Despite these criticisms though, the Green Revolution has forever changed the way agriculture is conducted worldwide, benefiting the people of many nations in need of increased food production.