Q26 of 30 Page 1

Draw and explain expanding age pyramids of human population. Why is it so called?

Diagram of expanding age pyramid:

Age Pyramid: foreman population age pyramid generally shows age distribution of males and females.


Expanding age pyramid: in this, no.of pre- reproductive individuals is large , no.of reproductive is moderate and post-reproductive is very few.


This age pyramid shows that the population is growing.The rate of the growth depends upon the size of pre-reproductive population.This type of expanding age pyramid is seen in developing countries like India and Brazil.



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OR


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(a) Name the population growth pattern the equation represents. What does “r” represent in the equation? Write its importance in population growth.

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OR


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