Answer:
because harmful substances often chemicals or microorganisms contaminate a stream, river, lake, ocean, aquifer, or other body of water, degrading water quality and rendering it toxic to humans or the environment.
Explanation:
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Answer:
Mesosphere
Explanation:
The mesosphere starts at 31 miles (50 km) and extends to 53 miles (85 km) high. The top of the mesosphere, called the mesopause, is the coldest part of Earth's atmosphere, with temperatures averaging about minus 130 degrees F (minus 90 C).
1) Gravity
2) Wind
3) Glaciers
4) Surface water
5) Water
A biological community of interacting organisms and their envious
Answer:
All animals, and humans are part of the carbon cycle. When animals eat they get carbon in the form of carbohydrates and proteins and is released back into the atmosphere as a waste product when animals breathe.
Explanation:
