7. carbon dioxide is a colorless odorless gas why is it considered a pollutant? a. it gets into natural waters and kills fish b. it promotes algal growths in natural waters c. it causes respiratory illness in humans d. it increases the warming of the atmosphere

Because D, it warms the atmosphere and pokes holes in the ozone layer.

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.