Question

how much of the sunlight entering earths atmosphere eventually leaves? all of it none of it

Explanation:

The Earth's energy balance involves sunlight (solar radiation) entering the atmosphere. Some is absorbed, but energy is conserved, so all the energy (in the form of sunlight's energy, either directly or after being transformed, like into heat that radiates back) eventually leaves the Earth - atmosphere system (either reflected or radiated as infrared). So the correct option is "All of it".

Answer:

All of it