Which one of the following statements is correct regarding Global warming?
Show Hint
- 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.
The Correct Option is B
Solution and Explanation
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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