Ask Question
11 August, 21:34

A substance that enters Earth's cycles and does harm to living things is

A. hydrogen.

B. a pollutant.

C. freshwater.

D. oxygen.

+1
Answers (1)
  1. 11 August, 22:02
    0
    Pollutants are substances that do harm to an environment and the beings that live in it. Fresh water and oxygen are beneficial and necessary for life. Hydrogen is a naturally occuring element and isn't harmful. The EPA is a government department that works to prevent pollution.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A substance that enters Earth's cycles and does harm to living things is A. hydrogen. B. a pollutant. C. freshwater. D. oxygen. ...” in 📗 Biology if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers