Answer:I believe the answer is A
Explanation:
B and C have nothing to do with how the sun helps or is a necessity. D only talks about the life span of the sun not how it is necessary for the earth. A is the only answer that makes sense because it gives examples on how the sun helps the earth as well as human kind.
Answer:
D. tip his head back farther to open his airway.
Explanation:
Tilting the head farther back moves the tongue away from the back of the throat, allowing air to enter the lungs.
Answer:
o C) an herbivore because cow only eat grass
It's e because it's a long Chain of carbon and hydrogen. It helps the rate of the metabolism allowing to digest quicker in your small intestent.
