Consider the following statements:
Statement-I: The atmosphere is heated more by incoming solar radiation than by terrestrial radiation.
Statement-II: Carbon dioxide and other greenhouse gasses in the atmosphere are good absorbers of long wave radiation.
Which one of the following is correct in respect of the above statements?
(a). Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
(b). Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
(c). Statement-I is correct, but Statement-II is incorrect
(d). Statement-I is incorrect, but Statement-II is correct
Explanation:
While the Earth's surface is initially heated by incoming solar radiation (shortwave), this energy is then re-radiated back into the atmosphere as terrestrial radiation (longwave). It's the terrestrial radiation that primarily heats the atmosphere.
Greenhouse gasses are indeed efficient at absorbing longwave radiation, which is why they contribute to the greenhouse effect.
Therefore, the correct answer is option (d)
