Study the three different age pyramids for human population given below and answer the questions that follow:

(a) Write the names given to each of these age pyramids.

(b) Mention the one which is ideal for human population and why.

(a) The shape of the pyramids reflects the growth status of the population.

• The pyramid A represents an Expanding population. It is observed in developing countries like India, Brazil, etc.

• The pyramid B represents a Stable population. It is observed in countries like USA.

• The pyramid C represents a Declining population. It is observed in countries like Japan.

(b) Population having large number of young members grow rapidly, while, the population bearing more number of post-reproductive members tends to be declining is good for human population. Therefore, the pyramid A is ideal for human population.