Answer:
It can affect ecosystems by, Air pollutants such as sulfur may lead to excess amounts of acid in lakes, and streams, and can damage trees and forest soils. Nitrogen in the atmosphere can harm fish, and other aquatic life when deposited of surface waters.
Explanation:
It's high sensitivity I believe
The answer is it provides us with vitamins. Hope this helps.
Answer:
This is my answer spot
Explanation:
I had something else on here. I don't know how to take off my own posts. Answer will be updated when I have the answer.
A. umbilical cord is the answer