Question

what does the shape of the given age pyramids (A to C) reflect on the growth status of the population?
(I) Declining, stable, expanding
(II) Stable, Expanding, Declining
(III) Expanding, stable, Declining
(IV) Declining, Expanding, Stable

Answer 1

Hint: Population pyramids are important graphs for visualizing how populations are composed, then looking up graphs divided by age and gender. There are three types of population pyramids that are expanding, stable, and declining. This shows proper variations in population after a certain period of time.

Complete answer:
Option A: Declining, stable, expanding: The first pyramid is with an increasing rate of Reproductive age group. it can produce new generations in large quantities, so pyramid ‘A' stands for expanding population. But, in this option, it is given as declining.
Option B: Stable, Expanding, Declining: In the case of a second pyramid, the number of reproductive age groups is moderate so, due to this reason pyramid 'B’ stands for a stable population. but here in this option, it is given as expanding so this is not a true option.
Option C: Expanding, stable, Declining: Triangular age pyramid has a high proportion of pre-reproductive individuals, a moderate number of reproductive individuals, and fewer post-reproductive individuals. It represents a young or rapidly growing population in an urn-shaped age pyramid. The number of reproductive individuals is higher than the number of pre-reproductive individuals, it literally represents a declining or diminishing population. With negative growth in the Bell-shaped age pyramid, the number of pre-reproductive and reproductive individuals is almost equal, most people up till individuals are comparatively fewer. it represents a stable or stationary population neither diminishing nor diminishing.
Option D: Declining, Expanding, Stable: here, In option D the Is declining population. But, deals with a population as it contains large numbers of reproductive individuals.
Thus, the answer is option (III): Expanding, stable, Declining

Note: So many factors which influence population growth rate. Birds, deaths, migration, and immigration, are the factors that affect the country’s population growth rate. Middle-income fewer general birth rates.