3. Chemicals in the air can combine with rain to produce acid rain, which is harmful to the environment. Which of these is most likely to be the pH of acid rain? A. 0
B. 4
C. 10
D. 14

How are tumors cells different from normal cells

How do you date a sample of rock that you suspect as being one of the earliest on earth

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