The above graph indicates . . . . . . with relation to population.

Which one is correct for the logistic model of population growth?
$I.$ Population growth rate increases as the size of the population approaches the carrying capacity.
$II.$ All individuals have the same effect on population growth.
$III.$ There are unlimited natural resources.
$IV.$ As population increases,the competition goes on increasing.
Select the correct combination.

State the popular humorous anecdote about the dramatic demonstration of how a large population can build up exponentially.

The main factor in increasing the population is

In a growing population of a country,

Which one of the following equations represents the Verhulst$-$Pearl Logistic Growth of population?