Question

Which of the following is/are true about green house effect?

• A. Greenhouse gases trap sun's heat energy.
• B. Prevents drastic fall of temperature at night.
• C. Reradiate the absorbed energy in all directions
• D. Refracts the sun's heat energy back into space.

Answer 1

Answer: (A), (B), (C)

The correct options are
A Greenhouse gases trap sun's heat energy.
B Prevents drastic fall of temperature at night.
C Reradiate the absorbed energy in all directions

The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions. This effect keeps the surface warm and habitable at night when there is no sunlight.