Question:
Which one of the following statements is correct regarding Global warming?
Which one of the following statements is correct regarding Global warming?
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CO2 fertilization enhances photosynthesis, but long-term productivity depends on nutrients, water and climate.
Updated On: Dec 17, 2025
- Water vapour does not contribute to global warming.
- Global warming is likely to increase the productivity of plants due to CO2 fertilization.
- CFCs do not cause global warming, but can cause ozone layer depletion in stratosphere.
- HFCs and HCFCs are good substitutes for ozone-depleting substances as they cause neither global warming nor ozone layer depletion.
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The Correct Option is B
Solution and Explanation
Water vapour is a greenhouse gas and contributes to global warming, so statement (A) is incorrect.
CFCs are strong greenhouse gases and hence contribute to global warming, making statement (C) incorrect.
HFCs also contribute to global warming, so statement (D) is incorrect.
Statement (B) is correct because CO2 fertilization generally increases plant productivity by enhancing photosynthesis.
Final Answer: (B)
CFCs are strong greenhouse gases and hence contribute to global warming, making statement (C) incorrect.
HFCs also contribute to global warming, so statement (D) is incorrect.
Statement (B) is correct because CO2 fertilization generally increases plant productivity by enhancing photosynthesis.
Final Answer: (B)
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