lf there was no CO2 in the atmosphere, the earth's temperature would be
Less than the present
Same as present
Higher than the present
Dependent on O2 content of air
lf there was no CO2 in the atmosphere, the earth's temperature would be
Which of the following pollutants is discharged by jet planes? |
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SO2 pollution is indicated by |
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Lichens indicate pollution by |
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Major aerosol pollutant present in the jet plane emission is |
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Which of the following shows biological amplification? |
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Ultra-violet light causes |
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The ultraviolet radiations in the stratosphere are absorbed by |
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Escherichia coli used as an indicator organism to determine pollution of water with |
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Eutrophication causes decrease in |
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Addition of phosphates and nitrates/fertilizers into water leads to |
Answer |