Name three main type of pollution.
Pollution-
Three main types of pollution are- air pollution, soil pollution, and water pollution.
Name any four pollutants which cause water pollution. State any three ways of controlling water pollution.
(a) What is air? Write the names of various constituents of air.
(b) What is air pollution? What are the main sources of air pollution?
Name any two types of chemicals used in agriculture which cause water pollution.