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A woman uses pills A as a method of birth control (or preventing pregnancy). The pills A stop the ovaries from releasing ovum into oviducts. Another woman uses pills B as a method of birth control. The pills B kill the sperms and prevent pregnancy.(a) What do the pills A contain?
(b) What is the common name of pills A?
(c) What do the pills B contain?
(d) What is the common name of pills B?
(e) What is the general name of these methods of birth control?
(a) Pills used by the woman to prevent pregnancy contain hormones.
(b) The common name of pills A (preventing pregnancy) is oral pills.
(c) The pills B contain spermicides (that kill the sperms and prevent pregnancy).
(d) The common name of pills B is vaginal pills.
(e) The general name of these methods of birth control is known as the chemical method.