Vitamin- $E$ is also called
Antisterility vitamin
Antihelmenthic hormone
Inorganic antisterility vitamin
None of the above
A force which acts against the achievement of highest possible level to population growth is known as
Lactational amenorrhoea, is a natural way of birth spacing. It is due to the high level of
According to $1991$ census, rural population of India is
Oral polio vaccine and hepatitis first dose is given to a child at
Sex ratio in a species indicates the numerical relation between the number of