According to the $2001$ census,the population growth rate was approximately: (in $;\%$)

$Statement 1$: Over-population has become a serious problem in the developing countries.
$Statement 2$: It does not exhaust natural resources, causes unemployment and pollution.

Choose the correct causes for the population growth.
$I$. Decline in death rate
$II$. Rapid increase in $MMR$ and $IMR$
$III$. Rapid decline in $MMR$ and $IMR$
$IV$. Increase in the number of people in the reproductive age group
$V$. Rapid increase in the death rate

Higher human population in cities is mainly due to

The main cause of population explosion in the world is:

What are the probable factors that contributed to the population explosion in India?