Which one of the following is the most widely used method of contraception by females in India?
Oral contraceptive pills
Condoms
$IUDs$
Sterilisation
In vivo fertilisation involves the fertilisation that takes place
Match the following columns
Column-I | Column- II |
$(A)$ Pill | $(1)$ Intra uterine device |
$(B)$ Condom | $(2)$ Prevents ovulation |
$(C)$ Vasectomy | $(3)$ Prevents sperms from reaching to cervix |
$(D)$ Cu - T | $(4)$ Semen contains no sperms |
Presently, the world population doubles after every
Oral polio vaccine and hepatitis first dose is given to a child at
According to which theory will be the human population out-run food supply