Q. The atmosphere gets heated up mainly by (Solved)
1. Direct sun-rays
2. Radiation from the earth's surface
3. Heat of the earth's interior
4. Radiogenic heat
5. None of these
- b. Radiation from the earth's surface
1. Direct sun-rays
2. Radiation from the earth's surface
3. Heat of the earth's interior
4. Radiogenic heat
5. None of these