A woman uses pills A to prevent pregnancy for birth control. These pills prevent the ovaries from releasing ovum into oviducts. Another woman uses a chemical B that kills the sperm and prevent pregnancy. What is the general name of these methods of birth control?
A woman uses pills A to prevent pregnancy for birth control. These pills prevent the ovaries from releasing ovum into oviducts. Another woman uses a chemical B that kills the sperm and prevent pregnancy. What is the general name of these methods of birth control?