Greenhouse gases: This term refers to gases, such as carbon dioxide and methane, that trap heat in Earth's atmosphere, contributing to global warming.
Acid rain: This term refers to precipitation that has acidic components due to airborne pollutants reacting with water vapor. It can harm plants, animals, buildings, and bodies of water.
Ozone depletion: This term refers to the thinning of Earth's ozone layer due to the release of certain chemicals, such as chlorofluorocarbons (CFCs), into the atmosphere. It can lead to increased exposure to harmful ultraviolet (UV) radiation.