In India the number of females per thousands males had been constantly decreasing but in which of the following years, the number had been increased
$1971-1981$
$1981-1991$
$1951-1961$
$1961-1971$
$A$ : Once conception has occurred abortion can be induced by mifepristone drug.
$R$ : Mifepristone is progesterone antagonistic.
“In the absence of environmental resistance the population grows in geometrical ratio when the food is given in arithmetical ratio''. This is
The latest technique to produce the child is $GIFT$. The full form is
The best solution to population problem in India is to
Norplant’ is the new form of birth control and it