This was formerly used as a refrigerant and as a propellant in aerosol cans. these chemicals damage the ozone layer of the earth.

earth's lowest layer which is also the air we breathe. the thinning of the ozone layer. formerly used as a refrigerant and as a propellant in aerosol cans; synthetic chemicals;

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the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.