Paper 1 · People, Development and Environment
UGC NET December 2022 (03.03.2023) Shift-I
Given below are two statements. Statement I: Negative feedback effects tend to increase the magnitude of climate change. Statement II: Positive feedback effects tend to reduce the magnitude of climate change. In the light of the above statements, choose the most appropriate answer from the options given below.
- Statement I: Negative feedback effects tend to increase the magnitude of climate change.
- Statement II: Positive feedback effects tend to reduce the magnitude of climate change.
ABoth Statement I and Statement II are correct
BBoth Statement I and Statement II are incorrect ✓ Correct
CStatement I is correct but Statement II is incorrect
DStatement I is incorrect but Statement II is correct
Correct answer: (B) Both Statement I and Statement II are incorrect — Both statements are incorrect, so the answer is that both Statement I and Statement II are incorrect.
Explanation
★Both statements are incorrect, so the answer is that both Statement I and Statement II are incorrect.
★In climate feedbacks, a negative feedback works to lessen a change.
★So negative feedback reduces rather than increases the magnitude of climate change, making statement I incorrect.
★A positive feedback works to strengthen a change.
★So positive feedback increases rather than reduces the magnitude of climate change.
★This makes statement II incorrect as well.
★Therefore both statements are incorrect.
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