Which process do the contraceptive pills $Today$ and $Nim-72$ use to prevent fertilization?

What happens after a vasectomy?

Amniocentesis is one of the methods

Condoms are made up of a thin rubber/latex sheath which is used to cover:

Female condoms are known as:

Diaphragms are contraceptive devices used by females. Choose the correct option from the statements given below:
$i$. They are introduced into the uterus
$ii$. They are placed to cover the cervical region
$iii$. They act as physical barriers for sperm entry
$iv$. They act as spermicidal agents