Answer: The water in the earth is older than earth itself.The water inside earth came out as steam from volcanic vents and the clouds rained down water..Comets also contain lot of water ice.Early period of solar system large amount of comets and asteroids hit the earth They also brought lot of water.
Explanation:
Answer:
Skin serves as a protective barrier, a way to sense the world, and a layer that keeps nutrients and water inside the body.
Explanation:
The rock is heavy because the mass changes from 10.0kg to 100.0kg in 3.24 seconds
Answer:
the answer is C non-specific immunity
Explanation:
A pituitary glad tumor releasing too much hormones