Question: what are the different types of pollution and their causes?
Answer: Air Pollution. There are two types of air pollutants, primary and secondary. ... 
Water Pollution. Nutrient pollution is caused by wastewater, sewage, and fertilizers. ... 
Land & Soil Pollution. Land pollution is the destruction of land as a result of human's activities and the misuse of land resources. ... 
Noise & Light Pollution.