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The residence time of NO and $NO_{2}$ in atmosphere are representative in days:

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Which are gases taken as oxides of nitrogen?

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Headache, fatigue, unconsciousness and eventually death is caused by the excessive supply of gas:

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Poisoning of CO can be reversed by giving oxygen at pressure:

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Transportation causes to produce of $CO_{2}$ in atmosphere:

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Major source of generation of CO is:

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Natural sources(s) of emission of carbon monoxide:

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Which is property of CO?

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Carbon Monoxide is:

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Secondary pollutants are:

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Primary pollutants are:

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Which gas produces air pollution?

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The waste products given out from chimneys, automobiles produce pollution:

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Pollution due to adverse affect of substances on human health, quality of life, and natural functioning of ecosystem is called:

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Smaller unit of biosphere is:

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Elements in lithosphere exist generally as:

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Eleven elements made part of earth mass:

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Lithosphere extends upto kilometer of earth crust in depth:

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Part of fresh water consumed in domestic purpose:

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Part of fresh water consumed in industry is:

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Agriculture consumes part of fresh water:

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Fresh water of total earth water is:

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Polar ice caps and glaciers consists total earth water:

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Ocean contains part of earth's water:

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Hydrogen covers the surface of earth:

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