A. Water falls from the atmosphere as rain, ice, or snow
It disappears from existence completely, idk. ask your teacher. hope this helps!
Do you have a picture? It would really help answer your question
Answer:
exchange carbon dioxide for oxygen,help with the movement of the blood cells that pump oxygen-rich blood to all cells in the body.
Explanation:
Answer:
I think it just all exists at once, if it never is created or destroyed. It must have just appeared at the same time at some point. It doesn't exactly come from anywhere, but that's my opinion. There might be another scientific answer out there, but that's what i think. I hope this helps.
Explanation: