Q. Consider the following statements:
1.The amount of insolation decreases from equator to poles due to the increasing slant of solar rays.
2.In the Earth’s heat budget, about 51% of incoming solar radiation is absorbed by the surface, while 17% is absorbed by the atmosphere.
Which of the statements given above is/are correct?
Answer: A
Notes:
Explanation:
Statement 1: Correct. Vertical rays at equator cover less area with more energy; oblique rays at poles spread over larger area with less energy.
Statement 2: Incorrect. The surface absorbs 51 units, but the atmosphere absorbs 23 units (6 from scattered + 17 direct), with total incoming as 100 units.
