From the given graph of population growth,select the correct option that shows the correct value of '$r$' and the corresponding age pyramid.

Zero growth of population is indicated by

Given below are two statements.
Statement $I$: Under unlimited resource conditions,every species is capable of growing exponentially.
Statement $II$: $A$ population growing in a habitat with limited resources initially shows a very slow rate of growth.
In the light of the above statements,choose the correct option.

Given below are two statements:
Statement-$I$: $A$ population growing in a habitat with limited resources shows initially a lag phase.
Statement-$II$: $A$ population growing in a habitat with limited resources shows finally an asymptote phase.

The formula $N_t = N_0 e^{rt}$ represents which type of growth?

The birth and death rates of four countries are given below. Which one will have the least population growth rate?

$Country$	$Birth\, rate$ $/1000$	$Death\, rate$ $/1000$
$M$	$15$	$5$
$N$	$25$	$10$
$O$	$35$	$18$
$P$	$48$	$41$