The causes of pollution Pollution is the release of harmful environmental contaminants. The main air pollutants are carbon monoxide‚ lead oxides‚ sulfur dioxide and nitrogen oxides. The principle causes of pollution are exhaust pipes from motor vehicles‚ smoke released by factories and moreover‚ industrial plants burn coal and oil‚ which contain sulfur. New inventions and processes have been continuously developed to improve our way of life; such developments are called technological
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that radiates out from the breaking rock. People have known about earthquakes for thousands of years‚ of course‚ but they didn’t know what caused them. In particular‚ people believed that the breaks in the Earth’s surface--faults--which appear after earthquakes‚ were caused *by* the earthquakes rather than the cause *of* them. It was Bunjiro Koto‚ a geologist in Japan studying a 60-mile long fault whose two sides shifted about 15 feet in the great Japanese earthquake of 1871‚ who first suggested
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Determining Causes and Effects Determining Causes and Effects The majority of blood donors are middle aged due to advertising not being effective among youth donors. Young prospective first time donors‚ with their long-term donation potential‚ are especially attractive targets for blood agencies. Youth are often underrepresented in donor pools‚ however; persuading them to give blood may require specifically tailored marketing communication. The first cause of not being effective in advertising
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Tensions pre 1914 and reasons for Outbreak of WW1: The causes of World War I‚ which began in central Europe in late July 1914‚ included intertwined factors‚ such as the conflicts and hostility of the four decades leading up to the war. Militarism‚ alliances‚ imperialism‚ and nationalism played major roles in the conflict as well. The immediate origins of the war‚ however‚ lay in the decisions taken by statesmen and dictators during the Crisis of 1914‚ casus belli for which was the assassination
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CAUSES OF DEFORESTATION Deforestation is the product of the interaction of the many environmental‚ social‚ economic‚ cultural‚ and political forces at work in any given region. The mix of these forces varies from decade to decade‚ and from country to country. As a consequence‚ generalizations are dangerous. In most cases‚ deforestation is a process that involves a competition amongst different land users for scarce resources‚ a process exacerbated by counter-productive policies and weak institutions
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entire organization. In some cases‚ the same group may be described as "freedom fighters" by its supporters and considered to be terrorists by its opponents. Terrorism can actually be seen as a cry for attention‚ and our media give them just that. The causes and effects of terrorist attacks depend on the motivation of an individual or an entire group. Nobody in their right senses would resort to terrorism. One of the main reasons for terrorism is social and political injustice. People choose terrorism
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Epilepsy is far more common than most people realize. It is quite possible for the person next to you to have it. Epilepsy is "a diverse collection of disorders”. In the United States‚ there are close to one million people with epilepsy or about 1 in 100 people. (Showing a visual) Epilepsy is the most common serious brain disorder worldwide with no age‚ racial‚ social class‚ national‚ or geographic boundaries. This is a review of the emerging insights into the mechanisms underlying the most common
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The basic causes of World War II were nationalistic tensions‚ unresolved issues‚ and resentments resulting from the First World War and the effects of the Great Depression. Even though what sparked the Second World War were the invasion of Poland by Germany and the invasion of China by Japan‚ there are still so many little reasons the whole war fused up. The main the cause of this war was the Treaty of Versailles. Woodrow Wilson believed that Germany should have been punished but not as severely
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Edgar Allan Poe Since time began‚ the mystery of addiction remains. Our forbears‚ scientists‚ professionals‚ user’s‚ family‚ friends and society in general still struggled to grasp concepts of addiction. What causes it? Is it inherited‚ psychological‚ a social
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The causes of crime seem to be indefinite and ever changing. In the 19th century; slum poverty was blamed‚ in the 20th century‚ a childhood without love was blamed (Adams 152). In the era going into the new millennium ‚ most experts and theorists have given up all hope in trying to pinpoint one single aspect that causes crime. Many experts believe some people are natural born criminals who are born with criminal mindsets‚ and this is unchangeable. However‚ criminals are not a product of heredity
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