Which of the following statements correctly compares the relationship between the earth, its atmosphere and radiation?

1. the earth is cooled and its atmosphere is heated by solar radiation.

2. the earth is heated and its atmosphere is cooled by terrestrial radiation.

3. the earth is cooled and its atmosphere is heated by terrestrial radiation.

4. the earth is heated and its atmosphere is cooled by solar radiation.

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The option 4 is correct answer.

Explanation:

Terrestrial radiation is a long wave electromagnetic radiation. It originates from the earth and its atmosphere.

The sun emits a huge amount of energy. It travels across the space. The atmosphere is not directly heated by the solar radiation. It is heated by the terrestrial radiation that the planet itself emits.

When the land is heated then it emits radiation which heats up the atmosphere.

The earth is cooled and its atmosphere is heated by terrestrial radiation.

Therefore, the relationship between the earth, its atmosphere and radiation is correctly compared by statement 4.

the correct choice is a .

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1/0.14nm = 10^10/1.4 a lot