Suppose someone tells you that carbon dioxide (CO2) should not be classified as an air pollutant because it is a natural chemical that is part of the carbon cycle (see Figure 3.20, p. 65) and a...

Suppose someone tells you that carbon dioxide (CO2) should not be classified as an air pollutant because it is a natural chemical that is part of the carbon cycle (see Figure 3.20, p. 65) and a chemical that we add to the atmosphere every time we exhale. Explain the faulty reasoning in this statement about CO₂.