The potential for future increases or decreases in a population based on the present age structure is called

population growth momentum.

Explanation:

Population momentum provides an explanation for the population growth that happens even if number of children per woman declines. It occurs because the number of reproductive women also determines the population growth, and not the number of children per woman solely. Population momentum, therefore, occurs due to a large number of people in childbearing and pre-childbearing years.

the president has the power to appoint federal judges, ambassadors, and other "principal officers” of the united states, subject to senate confirmation of such appointments.

the first settlements began along the huang river because of the importance of the huang river in the beginning of china. it goes back to the story, “the tale of emperor yu”, which references the tale of the great flood, which was caused by the huang river and was believed to create and influence china’s making.