Given below are two statements: one is labelled as Assertion A and the other…
2026
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Earth's atmosphere keeps the planet warm mainly by reflecting the incoming solar radiation.
Reason R: Greenhouse gases absorb longwave radiation emitted from the earth's surface.
In the light of the above statements, choose the most appropriate answer from the options given below:
- A.
Both A and R are correct and R is the correct explanation of A
- B.
Both A and R are correct but R is NOT the correct explanation of A
- C.
A is correct but R is not correct
- D.
A is not correct but R is correct
Attempted by 20 students.
Show answer & explanation
Correct answer: D
Assertion A is incorrect because the Earth's atmosphere warms the planet primarily by trapping outgoing longwave radiation (the greenhouse effect), not by reflecting incoming solar radiation. Reason R is correct as greenhouse gases do absorb longwave radiation emitted from the Earth's surface to retain heat. Therefore, Assertion A is false while Reason R is true.