Question

The following diagrams are the age pyramids of different populations.

Select the CORRECT statements regarding the above:

• A. $A$ - It is a pyramid-shaped age pyramid indicating decreasing population growth.
• B. $B$ - It is a bell-shaped pyramid indicating stable population.
• C. $C$ - It is an urn-shaped pyramid indicating increased population growth.
• D. All statements are correct.

Answer 1

Answer: (B)

A-Age pyramid having higher population of pre-reproductive individuals, moderate number of reproductive individuals and low post-reproductive individual count forms the proper upright triangular shape. It represents growing population or expanding one.
C-If the count of reproductive population is higher than the pre-reproductive population, the age pyramid forms an urn shape. It represents declining or diminishing population with low natality.
B-For a bell-shaped age pyramid, the population of pre-reproductive and reproductive groups is almost equal. Post reproductive population is low. Such age pyramid shows stable or stationary population, neither growing nor diminishing.