1.

The age groups in a population are classified byA. Reproduction rateB. Death rateC. Age of marriageD. Sex ratio

Answer» Correct Answer - a
(a) The ratio of various age groups is very important for future aspects of population. Three major age groups in any population are:
- pre-reproductive (Juvenile or dependent phase)
- Reproductive (Adult phase)
- Post reproductive (Old age )


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