Gujarati
3.Reproductive Health
normal

The percentage ratio of natality over mortality is called

A

Vital index

B

Population density

C

Total count of individuals

D

Fertility rate

Solution

(a) The percentage ratio of natality over mortality is known as vital index

$i.e.$, natality/mortality $\times$ $100$.

It determines the growth of a population.

Standard 12
Biology

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