Definitions [4]
Define smog.
- Smog is a combination of smoke and fog which form droplets that remain suspended in the air.
- Smog is a chemical mixture of gases that forms a brownish-yellow haze. It mainly consists of ground-level ozone, oxides of nitrogen, volatile organic compounds, SO2, acidic aerosols and some other gases.
Define the following term:
Pesticides
Pesticides such as DDT (dichloro-diphenyl-trichloroethane) are used in agriculture to destroy pests, alter the basic structure of the soil, kill microorganisms in it, and may even reach the human body through food grown in such soils.
Define the following term:
Sanitary landfills
Sanitary landfills are places where waste is dumped in a ground depression and covered with dirt every day.
Definition: Soil Pollution
The contamination of soil by natural or synthetic substances that adversely affect its physical, chemical, and biological properties and reduce its productivity is called soil pollution.
