(a) What are sexually transmitted diseases? Give two examples of sexually transmitted diseases.
(b) Which method of contraception prevents fertilised egg from being implanted in the uterus?
Answer :
(a) The disease which is caused by sexual contact with an infected person is termed as a sexually transmitted disease. Examples: AIDS and syphilis.
(b) IUCD (Intrauterine Contraceptive Devices) such as copper-T prevents the fertilised egg from being implanted into the uterus.