If your sleeping child eyes is moving back and forth while his eyelids are closed it is likely that he is sleep
The answer is red blood cells
Answer:
It can clog water intakes, use up dissolved oxygen as they decompose, and block light to deeper waters.
Explanation:
This causes overstimulation in growth of aquatic plants and algae.
A. Moisten and filters incoming air
Answer:
It is important to have more than one piece of evidence to make sure that the evidence is actually evidence. Or in other words, that the evidence is proven true. With only one piece of evidence, you can't be fully sure if calculations were correct, if the source was trustworthy, etc.
Multiple evidence is kinda like double checking math problems. If you don't do it, you can't be 100% certain the answer is correct.