0.6 ha per capita (Figure 1). The five most forest-rich countries (the Russian Federation‚ Brazil‚ Canada‚ the United States of America and China) account for more than half of the total forest area. Deforestation – mainly the conversion of tropical forest to agricultural land – shows signs of decreasing in several countries. Around 13 million hectares of forest were converted to other uses or lost through natural causes each year in the last decade. At a regional level‚ South America suffered
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in the world are to be found in the rainforests. More than 3500 species of plants and animals! The constantly high temperatures and the continuously high humidity in the tropics make this biodiversity possible. The temperature is in most tropical rainforests between 25 and 35 degrees Celsius. Unfortunately‚ the forests are threatened. David Orr correctly observed that “ if today is a typical day on planet earth‚ we will lose about 30‚000 hectares of rainforests‚ or 1200 hectares per hour‚ or 21 hectares
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contribute to ongoing changes in climate patterns. Deforestation undermines this important carbon sink function. It is estimated that 15% of all greenhouse gas emissions are the result of deforestation. Deforestation is a particular concern in tropical rainforests because these forests are home to much of the world’s biodiversity. For example‚ in the Amazon around 17% of the forest has been lost in the last 50 years‚ mostly due to forest conversion for cattle ranching. Deforestation in this region
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Cruelty to animals +[pic] A live fowl market in Asia with live‚ dead and dying birds. Cruelty to animals refers to the infliction of unnecessarysuffering or harm to nonhuman animals. Broadly speaking‚ there are two approaches to the issue. Theanimal welfare position holds that there is nothing inherently wrong with using animals for human purposes‚ such as food‚ clothing‚ entertainment‚ and research‚ but that it should be done in a humane way that reduces unnecessary suffering. Animal rights theorists
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to prevent deforestation”. Buzzle.com. Retrieved 23 April 2014‚ from http://www.buzzle.com/articles/how-to-prevent-deforestation.html Duston‚ T. E. (1993). Chapter 2: The anatomy of a solid waste stream‚ p. 17-21. Greenwood‚ V. (2012‚ October 2). “Tropical deforestation is a booming business for organized crime” Mawalagedara‚ R.‚ &Oglesby‚ R. J. (2012). “Chapter 1: The climatic effects of deforestation in South and Southeast Asia” Szalay‚ J. (2013‚ March 6). “Deforestation: Facts‚ causes & effects”
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Habitat loss—due to destruction‚ fragmentation or degradation of habitat—is the primary threat to the survival of wildlife in the United States. When an ecosystem has been dramatically changed by human activities—such as agriculture‚ oil and gas exploration‚ commercial development or water diversion—it may no longer be able to provide the food‚ water‚ cover‚ and places to raise young. Every day there are fewer places left that wildlife can call home. There are three major kinds of habitat
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You exam will have 60 multiple choice questions worth 1 pt each and 4 essay questions worth 10 points each for a total of 100 points. Review Exam 2 Underlined= possible essay questions. Chapter 5 1. In a pressure gradients winds will move winds from ____ pressure to ____pressure. 2. Know the movements for a cyclone and anticyclone in both hemispheres. 3. What is atmospheric pressure? 4. What device is used to measure atmospheric pressure? 5. What is the relationship between
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resources are processed within an ecosystem‚ raising the issue of whether the biogeochemical functioning of an ecosystem will be impaired by a loss of species or the introduction of a new species. Essential Questions Why do ecosystems like Tropical Rainforests have such immense diversity? What have scientists discovered that determines how many individuals of a species can be supported within an ecosystem? How does science restore the diversity to areas where human activity has interfered with the
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ANNA UNIVERSITY CHENNAI :: CHENNAI – 600 025 B.E / B.TECH. DEGREE EXAMINATIONS – I YEAR ANNUAL PATTERN MODEL QUESTION PAPER HS1X01 – TECHNICAL ENGLISH (Common to all Branches of Engineering and Technology) Regulation 2004 Time : Three Hours Maximum Marks :100 Answer All Questions PART A 10 X 2 =20 1. Match the words in column A with their meanings in column B: 4 x ½ = 2 A B a. abundant b. escalate c. culminate d. spectacular i. rise ii. reach its highest point iii. strikingly grand iv. plenty
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Hurricane Katrina To be considered Hurricane Katrina could be the most powerful and deadly hurricane to form and land in the United States to this day. When formed‚ Katrina was a Category 5 hurricane‚ but when landed‚ it became a Category 4 hurricane. This released some of the tension‚ but not much. Hurricane Katrina contained 175 mile per hour winds causing massive pressure and destruction. Most of eastern North America began to take safety cautions. The White House and government began to make
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