Where did most of earth’s water come form? 1) Asteroids and meteors
2) Comets
3) Pacific Ocean
4) Polar ice sheets

What can happen to solar radiation when it enters earths atmosphere? check all that apply 1)it is absorbed by earth. 2)it is reflected by clouds. 3)it is reflected by glacial ice. 4)it is condensed into visible light. 5) is amplified by water molecules.

Why are shark population in decline worldwide?

What factors britain to become an industrial and commercial power?