In the absence of greenhouse gases -
1. | Life on earth would be impossible. |
2. | Average temperature of the earth will decrease drastically. |
3. | There will be no effect on Earth |
4. | Both (1) and (2) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTropospheric pollution arises due to the presence of:
1. | SO2, SO3, and NO2, in the lowest layer of the atmosphere. |
2. | SO2, SO3, and NO2, in the uppermost layer of the atmosphere. |
3. | SO2, SO3, and NO2, in the middle layer of the atmosphere. |
4. | All of the above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGases responsible for greenhouse effect are :
1. Carbon dioxide (CO2)
2. Ozone (O3)
3. Nitrous oxide (N2O)
4. All of the above.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology