In India, marriageable age for boys is ______ and girls is ______ respectively.
$21, 18 \;years$
$15, 14 \;years$
$15, 18 \;years$
$18, 21 \;years$
Presently, the world population doubles after every
Surgical removal of uterus is called
Condition in which motility remains very less is
Housing problems, health problems, pollution problems etc. are created by the
How many persons are added to the Indian population per year