Addition of constituents to land, water or air which can decline the natural standard of the environment is called pollution.
- Some of the major pollutants of air are fly ash, nitrogen oxides, sulfur dioxide, and carbon dioxide
- Some pollutants found in water are industrial chemicals, fertilizers, radioactive wastes, pesticides, petroleum products
- Causes of soil pollution are discarding semi-solid and solid waste during agricultural practices, etc.
Refer ICSE Selina publications Class 10 Biology Chapter 14 and learn to tackle various questions asked based on pollution, measures to control different types of pollution, acid rain, ozone, ozone depletion, global warming, etc. from the given here.