Vehicular Pollution problems in India There are three broad sources of air pollution from human activities: stationary or point‚ mobile‚ and indoor. In developing countries especially in the rural area‚ indoor air pollution from using open fires for cooking and heating may be a serious problem. Industries‚ power plants etc. are the cause of stationary air pollution. But in urban areas both developing and developed countries‚ it is predominately mobile or vehicular pollution that contributes to
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The Interaction Hypothesis (IH) is attributed to Michael Long (1981) is based primarily on the work of Stephen Krashen and Evelyn Hatch. Long emphasized the importance of comprehensible input that was central to Krashen’s Input Hypothesis but claimed that this input was most likely to be acquired during interactions which involved discourse modifications. This claim supported that of Hatch (1978) who showed a direct link between the way learners acquired a second language (l2) and the interactions
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“Light Pollution” is a form of environmental pollution in which excessive artificial outdoor lightings affect the natural environment. Light pollution in Hong Kong is very serious. The main reason behind that are the artificial outdoor lightings. As there are many buildings scattered in Hong Kong‚ artificial lighting is omnipresent. The severe light pollution reduces the number of stars that are visible in the sky. The HKSAR Electrical and Mechanical Services Department‚ 20% of the total electrical
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UNDERSTANDING NOISE POLLUTION Most of us are very used to the sounds we hear in everyday life. Loud music‚ the television‚ people talking on their phone‚ the traffic and even pets barking in the middle of the night. All of these have become a part of the urban culture and rarely disturb us. However‚ when the sound of the television keeps you from sleeping all night or the traffic starts to give you a headache‚ it stops becoming just noise and start turning into noise pollution. For many of us‚ the
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Protection Agency Office of Water 4304 EPA-822-B-01-003 October 2001 Nutrient Criteria Technical Guidance Manual Estuarine and Coastal Marine Waters U.S. Environmental Protection Agency Nutrient Criteria Technical Guidance Manual Estuarine and Coastal Marine Waters October 2001 Disclaimer This manual provides technical guidance to States‚ Indian Tribes‚ and other authorized jurisdictions to establish water quality criteria and standards under the Clean Water Act (CWA)‚ to protect aquatic
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Environmental Pollution Samantha Arrieta SCI/256 November 5‚ 2013 Analila Lucero Environmental Pollution As an associate-level environmental scientist‚ many concerns have risen in regards to the environmental‚ climate‚ economical and social consequences. Because of overpopulated cities‚ there have been some negative factors. The focus to address these issues could be in addressing the weaknesses in already existing laws with stronger enforcement. In the following‚ I will present a summary
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human brain has tripled in size‚ with most of the growth being seen in just the last two million years. Although many explanations for the growth of the human brain have been presented‚ one hypothesis that proves to be most accurate is the Social Brain Hypothesis as presented by Robin I.M. Dunbar. This hypothesis attempts to explain the cause in brain size evolution by attributing it to social relations and social changes happening in early human populations. Homo habilis‚ the first of our genus Homo
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questions about the population that can be answered from your data. Two or more of these questions should be able to be answered by a hypothesis test (these questions will investigate relationships between variables) and one or more could be answered from a confidence interval (this question will investigate the true value of an unknown parameter). Data Analysis: Conduct appropriate data analysis techniques to answer your research questions. This analysis should include two or more hypothesis tests
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Air pollution is the introduction into the atmosphere of chemicals‚ particulates‚ or biological materials that cause discomfort‚ disease‚ or death to humans‚ damage other living organisms such as food crops‚ or damage the natural environment or built environment. The atmosphere is a complex dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth’s ecosystems
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Noise Pollution When unwanted sound created by human beings hits our ears and disturbs the environment‚ noise pollution is created. Chiefly‚ noise pollution comes from barking dogs‚ loud music‚ vehicles‚ aircraft and rail transport‚ air-conditioners‚ factories‚ amplified music and construction work.Noise‚ by definition‚ is unwanted sound. What is pleasant to some ears may be extremely unpleasant to others‚ depending on a number of factors. The natural environment contains many sources of noise -
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