Considering the insolation received in 100, which of the following statements is/are correct regarding the heat budget of the Earth?
1. Around 35 units are reflected back before reaching the surface of the Earth.
2. 65 units are absorbed by the atmosphere and the Earth’s surface.
3. The earth radiates back 51 units as terrestrial radiation.
Select the correct answer from the options given below.1
1 and 2 only
2
1 and 3 only
3
1, 2 and 3
4
2 and 3 only