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名词解释题
污染物的转化(transformation of pollutants)
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更多 “名词解释题污染物的转化(transformation of pollutants)” 相关考题
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下列对污染物转化的叙述,不正确的是A、污染物在环境中通过理化作用发生转化B、污染物通过转化后会发生形态的改变C、污染物通过转化后会转变成另一种物质D、污染物的转化通常发生在污染物的环境迁移之后E、污染物的转化过程取决于污染物所处的环境条件
考题
问答题The worst pollution threat is concentrated in and near large cities. There the people-made pollutants increasingly surpass the ability of air and water to dilute (冲淡;稀释) the contaminants (污染物) to safe levels. The natural ecological cycle depends on plants, which absorb some pollutants and release oxygen to the air. But near large cities, natural vegetation becomes scarce, and introduced trees, ornamental shrubs and gardens are far from adequate in absorbing motor vehicle and industrial air pollutants. Finally, some pollutants, most notably atomic waste, may continue to contaminate air, land, and water for thousands of years. Therefore, ecocrisis—ecocatastrophe or ecocide—has been for some time one of the major concerns of not only the ecoactivists and environmentalists, but of many scientists of other fields and the government authorities of many countries as well.
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单选题关于污染物在大气中转归的叙述,下列哪项最全面?( )A
自净、转移、形成二次污染、转化成二次污染物B
自净、转移、转化成二次污染物、稀释C
自净、形成二次污染、转化成二次污染物、稀释D
自净、转移、挥发、沉降E
转移、形成二次污染、转化成二次污染物
考题
名词解释题氮转化 nitrogen transformation
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