Ecological Problems. Biological Magnification Increase or concentration of a substance, such as the pesticide DDT, in a food chain.
Atmospheric Pollution: Ozone Depletion (Sec. 18.8,18.9), Photochemical Smog (Sec. 17.3), Acid Deposition (Sec. 17.4), and Climate Change (Sec 18.1 - 18.6)
Pollution. Smog smog – mixture of chemicals that forms a haze in the air (Nitrogen Oxides etc) smoke from cars and factories release the chemicals.
