Question

Study the age pyramids given below and select the correct statement regarding these.

• A. A is a triangular age pyramid, where pre-reproductive stage is very large as compared to the reproductive and post-reproductive stages of the population. This type of age structure indicates that the population. This type of age structure indicates that the population would increase rapidly
• B. B is an inverted bell shaped age pyramid, where number of pre-reproductive and reproductive individuals is almost equal. This type of age structure indicates that the population is stable.
• C. C is an urn shaped age pyramid, where more number of reproductive individuals are present.This type of age structure indicates that the population is declining.
• D. All of these

Answer 1

The correct option is D All of these

Triangular age pyramid has high proportion of preoperative
individuals, moderate number of reproductive individuals and fewer post-reproductive individuals. It represents young or rapidly growing population.
In urn-shaped age pyramid, the number of reproductive individuals is higher than the number of pre-reproductive individuals. It represents declining or diminishing population with negative growth.
In bell-shaped age pyramid, the number of pre-reproductive and reproductive individuals is almost equal. Post reproductive individuals are comparatively fewer. It represents stable or stationary population, neither growing nor diminishing.