A substance that enters Earth's cycles and does harm to living things is A. oxygen. B. freshwater. C. a pollutant. D. hydrogen

asked Mar 14, 2017 231k views

3 votes

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

A. oxygen.
B. freshwater.
C. a pollutant.
D. hydrogen

7.9k points

Please log in or register to add a comment.

3 votes

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

Kyle Greenlaw answered Mar 15, 2017

7.8k points

5 votes

The answer is C: a pollutant.

Malditojavi answered Mar 20, 2017