Question

what is sex ratio???​

Answer 1

The no. of females and males of an particular country during a given time period is called as sex ratio.

Answer 2

The sex ratio is the ratio of males to females in a population. In most sexually reproducing species, the ratio tends to be 1:1. This tendency is explained by Fisher's principle. For various reasons, however, many species deviate from anything like an even sex ratio, either periodically or permanently.