Which one of the following is not normally a pollutant?
Carbon monoxide
Carbon dioxide
Hydrocarbons
Sulphur dioxide
Which one of the following is not normally a pollutant?
Eutrophication is often seen in |
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Ultraviolet radiation from sunlight causes the reaction that produces |
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DDT is a |
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Contamination of water with sewage is indicated by cysts of |
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The two gases making highest relative contribution to the greenhouse gases are |
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Which of the environmental pollutions can cause birth defects? |
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Which one of the following is not a bioindicator of water pollution? |
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Fluoride pollution mainly affects |
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Common indicator organism of water pollution is: |
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Gas leaked during Bhopal tragedy was |
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