Environmental Science and Ecology - Single MCQs (Page 24)

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Q231. DDT is a ?...Q232. Ultraviolet radiation from sunlight causes the reaction that produces ?...Q233. Contamination of water with sewage is indicated by cysts of ?...Q234. Which one of the following is not normally a pollutant?...Q235. CO emitted by automobiles prevents O-transport to body tissues by ?...Q236. A chemical harmful released by Chlorofluorocarbon to ozone is ?...Q237. As it travels along the food chain, the concentration of DDT ?...Q238. Carbon monoxide is a pollutant because it ?...Q239. Which one of the following statements is wrong in case of Bhopal, (India) traged...Q240. BOD of a pond is related to ______ in per unit volume of water ?...