What are various ways to avoid pregnancy? Elaborate any one method.

What are the various ways in which mosquitoes can be eradicated from any area?

The surgical method in females to avoid pregnancy is

Which of the following methods can prove to be useful to avoid pregnancy caused as a result of rape or casual unprotected sexual intercourse?

Which of the following methods can prove to be useful to avoid pregnancy caused as a result of rape or casual unprotected sexual intercourse?