ashlchoaders ashlchoaders

15-12-2015
Biology

contestada

A substance that enters Earth's cycles and does harm to living things is
a. a pollutant.
b. hydrogen.
c. freshwater.
d. oxygen.

Respuesta :

peachsnowflake peachsnowflake

15-12-2015

A pollutant because hyrdogen, freshwater and oxygen are all substances in which don't harm the earth's cycles

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Prettigirlcrazi95 Prettigirlcrazi95

21-01-2019

............a pollutant...

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