Automobile Pollution. Automobiles can cause many different kinds of pollution in the environment. Air‚ health and groundwater pollution are of the most common. The reasons for these problems can be contributed to exhaust systems and light switches that are standard equipment on most cars today. Older and newer cars alike are equipped with a catalytic converter system. Which are supposed to convert hydrocarbons‚ carbon monoxide and nitrogen oxides into harmless materials emitted from the automobiles
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Chapter 2 Environmental Laws‚ Economics‚ and Ethics Lecture Outline: I. A Brief Environmental History of the United States A. During the 18th and 19th centuries‚ most Americans had a frontier attitude toward nature and its resources B. Protecting forests i. Numerous men contributed to the protection of American forests throughout the 19th and 20th centuries 1. Influential artists and authors (i.e.‚ John James Audubon‚ Henry David Thoreau‚ George Perkins Marsh) aroused widespread public
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conservation model and it was successful also after that so many initiative were attempted like world conservation agency developed by IUCN in 1980 with the assistance of UNEP and WWF‚ similarly in 1972 wild life conservation act was also enacted in India. These all have the motto to conserve the wildlife. Than for saving the environment steps were also taken after holding the different conferences like Rio conference in Brazil‚ CANCUN in Mexico‚ EUEC [energy utility environment conference] in USA etc
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sources of noise pollution Introduction to sources of noise pollution:.. Sources of Noise Pollution Appliances used in the home such as mixer grinders‚ vacuum cleaners‚ washing machines‚ loudspeakers‚ television sets and music systems used with high volumes are the main sources of this kind of pollution. Small factories using machines cause a lot of noise pollution. Airplanes‚ .. Main causes of noise pollution: Noise is a problem chiefly of the urban area. Loud noise is considered as pollutant
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“A Small‚ Good Thing” “A small‚ good thing” by Raymond Carver brings a lot of vivid images to mind for me. Even though the writing is minimalistic‚ the story came alive. The lack of description enabled me to read the story and project characters from my own life in the place of the ones the author had created. From the beginning of “A small‚ good thing” I put my nephew‚ my niece‚ and my own son in the place of the boy in the story. The emotional tie to the stories outcome is what made me keep reading
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Small is Beautiful The word ‘small’ represents what is minor or of minimum importance but small can also be beautiful. For instance ‘smile’ is a five letter word‚ a small word as you may see it‚ but is of great importance. Smile is a beautiful thing. It brings cheer and happiness in one’s life‚ it helps one to stay fit and healthy not only mentally or emotionally but physically too. Smile brings joy and tenderness in one’s heart amidst various amounts of sorrow‚ tension and turmoil. Not only does
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AIR POLLUTION [pic] Introduction The earth’s atmosphere‚ at or near sea level‚ consists approximately of 78 percent nitrogen‚ 21 percent oxygen and 1 percent other gases. If it were possible to remain in this state‚ 100 percent clean air would result. However‚ many varied sources allow other gases and particulates to mix with the clean air‚ causing our atmosphere to become unclean or polluted. Some of these pollutants are visible while others are invisible‚ with each
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Factories‚ while producing industry and food for human consumption‚ contribute to the pollution of the environment. The waste that results from factory production often ends up in the soil and subsequently in streams and rivers. Waste also contaminates the air‚ contributing to smog‚ poor air quality and acid rain. Waste can also originate from farms thousands of animals kept in small confines produce a vast amount of waste‚ which enters the surrounding soil and water supply. This is why I
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smoke billowing from a factory chimney‚ flyash generated by thermal power plants‚ and speeding cars causing dust to rise from the roads. Natural phenomena such as the eruption of a volcano and even someone smoking a cigarette can also cause air pollution. | | |The gaseous composition of unpolluted air | |
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Environmental factors are one of the emphasized causes of ASD. It is important to understand that the study of environmental risk factors includes much more than exposure to chemicals. Scientists use the term "environmental" to refer to influences other than changes in a gene’s DNA. Autism risk factors‚ for example‚ appear to include such influences as parental age at conception‚ maternal nutrition‚ infection during pregnancy and prematurity (“Environmental Factors in Autism Initiative”). If a child
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