List and explain in brief three methods of contraception.
OR
List three techniques that have been developed to prevent pregnancy. Which one of these techniques are not meant for males? How does the use of these techniques have a direct impact on the health and prosperity of a family?

Explanation

Three techniques that have been developed to prevent pregnancy are:
i] Mechanical methods: Use of condoms, diaphragms, IUDs, etc.
ii] Chemical methods: Include oral contraceptive pills, spermicides, etc
iii] Surgical methods: Include vasectomy and tubectomy. Out of these three techniques, chemical methods are not meant for males. Use of these techniques have the following advantages that directly affect the health and prosperity of a family:
Use of these contraceptive techniques help in preventing unwanted pregnancies and thus reducing the family size and, thus, increases its prosperity.
They help to improve the maternal health status by preventing the chances of frequent pregnancies which otherwise reduces mother.s health and vitality.
Use of some contraceptive devices like condoms reduce the chances of getting sexually transmitted diseases such as AIDS.