Question

Earth has an ______of about 30 percent, reflecting much of the sun's radiation back into space.​

Answer 1

Albedo

Step-by-step explanation:

Albedo means Whiteness.

It is the measure of how a certain amount of light which hits a surface is reflected without being absorbed.

Any substance that appears white reflects most of the light that hits it and has a high albedo while any substance which looks dark absorbs most of the light that hits it indicating a low albedo.

Earth has an albedo of about 30 percent, reflecting much of the sun's radiation back into space.​