The country having a negative population growth rate is:

In a population growth curve,which of the following equations represents the sigmoid growth curve?

In the population curve of India,nowadays,if $N$ represents the number of births and $M$ represents the number of deaths,which of the following relationships is observed?

Biotic potential refers to

$A$: Under unlimited resource conditions,a population can show an exponential growth curve.
$R$: $A$ maximum possible number of individuals can always be supported when enough resources are available.

The intrinsic rate of natural increase is represented by which of the following?