Which of the following is an example of qualitative data

Why should the united state be concerned about air pollution in china?

How had the study of mitosis affected scientists knowledge of cancer

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food