4. Which statement accurately describes the cause of the enhanced greenhouse effect?

A) Burning fossil fuels causes an increase in the amount of atmospheric greenhouse gases, resulting in

the enhanced greenhouse effect.

B) Increased amounts of solar energy and infrared radiation are trapped by atmospheric greenhouse

gases as a result of the sun burning hotter, which contributes to the enhanced greenhouse effect.

C) Ultraviolet radiation from cyclic solar flares enhance the greenhouse effect by increasing the amount

of thermal radiation absorbed by greenhouse gases in the atmosphere.

D) Cellular respiration and photosynthesis use CO2 from the atmosphere, reducing the amount of

greenhouse gases in the atmosphere.