This document discusses air and water pollution. It defines pollution and pollutants, and describes the main types of pollution as air and water pollution. For air pollution, it lists common sources like smoke from industry, vehicles, and biomass burning, and causes like particulate and gas emissions. For water pollution, it lists sources like fertilizer and plastic waste, and causes such as sewage, dumping, and industrial waste. The document outlines health, environmental, and property effects of pollution. It suggests solutions like using cleaner fuels and energy sources to reduce air pollution, and being careful about household chemicals and waste to limit water pollution.