Reducing the use of aerosol cans has contributed to a decrease of which environmental issue?

• A. Global warming
• B. Water pollution
• C. Ozone layer destruction
• D. Deforestation

Answer: (C)

Reducing aerosol cans targets ozone layer destruction. Traditional aerosol propellants included chlorofluorocarbons that rise to the stratosphere and release chlorine and bromine radicals, which break apart ozone molecules. Using fewer aerosols means fewer of these ozone-depleting substances reach that layer, slowing ozone loss and allowing the ozone layer to recover over time. Global warming comes mainly from greenhouse gases like CO2, water pollution from contaminants in water, and deforestation from clearing forests, so those issues aren’t directly tied to aerosol use in the same way. Modern propellants are designed to avoid ozone depletion, but the key improvement linked to reducing aerosol cans is less damage to the ozone layer.