Why do people have sex for enjoment instead of only for repruduction of our human species?

What are 3 important public health tools for addressing flu outbreaks and why

To your family you want to buy a quality hand washing product. what are 4 strategies you woulld use

*edit* i took the test and i picked a and it was incorrect for its c! rank the following suggestions for preventing std, in order of increasing effectiveness. 1) using latex condoms properly 2) using spermicidal foam or jelly with a monogamous partner 3) abstaining from sexual intercourse and genital contact a. 1, 2, 3c. 2, 1, 3