Exponential phase of human growth started about
$1$ $A.D.$
$1600$ $A.D.$
$1750$ $A.D.$
$1975$ $A.D.$
In India, marriageable age for boys is ______ and girls is ______ respectively.
Which of the following methods is used during abortion?
'Nirodh' is a popular brand of
First dose of $BCG$ vaccine is given at the time of
Who was the first scientist to estimate the human population