Need help answering these 4 questions.

Whats one way that rocks do not follow the typical rock cycle pathway?

Explain how organisms could be harmed by high levels of salt from roadways?

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