Based on the passage, which of the following best describes the greenhouse effect?
A
The process by which radiant heat from the atmosphere heats up the Earth’s surface, making it warm enough for humans.
B
The method by which electromagnetic waves carry heat through air or water, leading to balanced temperatures.
C
A type of gas that lets radiant heat escape through holes in the atmosphere, making the Earth cool.
D
A system that allows the sun to absorb enough radiant energy from the Earth to stay hot.
A
The process by which certain gases in the Earth's atmosphere trap heat from the sun, leading to a warming of the Earth's surface.