Transcription of UNIT 5: Pollution - UGC
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UNIT 5: Pollution - UGC
111 PollutionUNIT 5 CAUSES, EFFECTS AND CONTROL MEASURES Air Water Soil Marine Noise Thermal Nuclear SOLID WASTE MANAGEMENT: CAUSES, EFFECTS AND CONTROL MEASURESOF URBAN AND INDUSTRIAL ROLE OF INDIVIDUALS IN Pollution Pollution CASE DISASTER MANAGEMENT: FLOODS, EARTHQUAKES, CYCLONES, , 5:09 PM111112 Environmental Studies for Undergraduate Courses We spray our elms, and the following spring,trees are silent of robin song, not becausewe sprayed the robins directly but becausethe poison traveled step by step through thenow familiar elm-earthworm-robin cycle Rachael CarsonThis quotation appeared in Rachael Carson sbook entitled Silent Spring. In the years follow-ing the publication of Silent Spring in 1962, thebook has inspired controversy and has initiateda major change in thinking about the safety ofusing pesticides and other toxic DEFINITIONP ollution is the effect of undesirable changes inour surroundings that have harmful effects onplants, animals and human beings.
of the twentieth century with the development of the transportation systems and large-scale use of petrol and diesel. The severe air quality prob- ... where this temperature reversal occurs is called the tropopause. The tropopause marks the end of the tropo-sphere and the beginning of the stratosphere,
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