Question

expanding pyramid and shrinking pyramid​

Answer 1

Expansive population pyramids are used to describe populations that are young and growing. Expansive population pyramids show a larger percentage of the population in the younger age cohorts, usually with each age cohort smaller in size than the one below it.

Constrictive population pyramids are used to describe populations that are elderly and shrinking. Constrictive pyramids can often look like beehives and typically have an inverted shape with the graph tapering in at the bottom.