This is due to the increasing amount of people throughout time within the US. Not only is the population growthing increasing the demand for energy within the US but so is modernization. As we continue to advance within our society many more aspect of our lives require power and electricity therefor increasing the demand for it.
B. A form of energy coupling refers to using the release of energy from exergonic hydrolysis of ATP to initiate other endergonic reactions for cellular metabolism.