Question

Average ratio of man and woman in human population in India is
A) 3:4
B) 1:1
C) 3:5
D) 1:2

Answer 1

Hint:Sex ratio is the number of females per thousand males. The sex ratio of world is around 1:1. Sex ratio imbalances can arise due to higher infant mortality, natural factor, sex selective abortions etc.

Complete answer:
To answer this question, we must know about the average sex ratio in India.
Sex ratio is a valuable tool for finding the population of female in India. The natural sex ratio according to Fisher principle should be 1:1 which mean 1000 females to 1000 males. But in India the count of females is slightly less. According to the 2011 census, the ratio was found to be 940 females per 1000 males. This is approximately equal to 1:1.

The reason for decrease the female birth ratio is
>Socio-economic factors like the dowry system.
>Desire for male children.
>Female feticide

Additional Information: The sex ratio is the result of natural selection on the sexes. It is the indication of the survival of females and males.

Thus the correct answer is (B). Average ratio of man and woman in the human population in India is 1:1.

Note:In India the highest sex ratio is seen in the states like Kerala, Puducherry, Tamil Nadu, and Karnataka. In states like Haryana the sex ratio was found to be 877 females per 1000 males. But with government initiatives the sex ratio has significantly improved. Arunachal Pradesh has the best sex ratio of around 1084 females per 1000 males.