increasing the amount of solar radiation reaching Earth. storing energy produced by human activity. absorbing infrared radiation released by Earth. increasing the average density of air.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Atmospheric greenhouse gases help heat the atmosphere by
Possibilities:
- increasing the amount of solar radiation reaching Earth.
- storing energy produced by human activity.
- absorbing infrared radiation released by Earth.
- increasing the average density of air.

absorbing infrared radiation released by Earth.