Who is known as Darwin of 20th century

Who was the Darwin fo 20^(th) century

Who is referred to as the ‘Darwin of the 20th Century’?

The most important factor which determined the increase in human population in India during the 20th century :

The most important factor which determined the increase in human population in india during the 20th century was

The most important factor which determined the increase in human population in India during the 20th century :