Question

Population explosion and birth control

Answer 1

Explanation:

A sudden increase in the size of the population is known as population explosion. The world population had reached from 2 million in 1900 to about 6 million in 2000. Such population explosion can be because of many reasons such as:

Decline in death rate

Decline in maternal mortality rate

Decline in infant mortality rate

More individuals with reproductive age

Increased rate of immigration

Increase in life expectancy.