Ask Question
13 March, 11:47

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. 13 March, 13:10
    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?
Get 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 there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers