Question

If there were no atmosphere around the earth, the temperature of the earth will:

• A. Increase
• B. Go on decreasing
• C. Increase during the day and decrease during the night
• D. Be unaffected

Answer 1

The correct option is C

Increase during the day and decrease during the night

The correct answer is option C: Increase during the day and decrease during the night

Explanation of the correct answer:

1. The atmosphere is a gaseous layer that surrounds our planet and is tethered to its place by the planet's gravity.
2. The greenhouse gases present in the atmosphere trap the sun's solar radiation during the day and prevent their loss at night.
3. Thus, they perform an insulating function and help in maintaining the temperature of the Earth.
4. Without the atmosphere, the solar radiation would heat the Earth during the day and escape during the night.
5. Thus, if there were no atmosphere around the Earth, the Earth's temperature would increase during the day and decrease during the night.

The final answer is option C.