Hi!
It would be A, aquifer. Sorry, I can't explain it, but I know it is A.
Hope this helped!
Answer:
Skeletal muscles contribute to maintaining temperature homeostasis in the body by generating heat. Muscle contraction requires energy and produces heat as a byproduct of metabolism.
Oxygen is a non-flammable gas due to the fact that it does not burn. But oxygen is needed for burning to take place; that is, oxygen support combustion. The primary hazard for oxygen is as an oxidizer. As an oxidizer, oxygen vigorously accelerates combustion. Because of this, a minimum of twenty feet must be maintained between oxygen and other combustible material or else, the oxygen container can explode if ignited.
A group of repeated movements performed continuously with a given weight load is known as a set. Sets<span> and reps are the terms used to describe the number of times you perform an </span>exercise. <span>A rep is the number of times you perform a specific </span><span>exercise and a s</span>et is the number of cycles of reps that you complete.