Why there is a sudden increase in the population in the world?

There are many reasons for rapid increase of population:

a. Ignorance responsibility of parenthood.

b. The belief of more children means more earners in the family.

c. Invention of machines that increased food productions.

d. And decrease in deaths due to improve medical care.

e. Hygiene and sanitation.

F. THESE REASONS ARE CULTURALLY BIASED.