The minimum number of females per $1000$ males in India (as per the $2011$ Census) is found in which of the following union territories?

In India,the population crossed the one billion mark in May $2000$. The probable reasons for this are a decline in:
$A.$ Maternal mortality rate $(MMR)$
$B.$ Infant mortality rate $(IMR)$
$C.$ Number of people in the reproductive age group
$D.$ Death rate

Generally,there was a population growth rate increase in India,but in which of the following years was there a decrease in the population growth rate?

The rate of human population growth is:

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

Which of the following developing countries has a high death rate?