Environmental pollution refers to the introduction of harmful pollutants into the environment. It has a dangerous effect on the natural world and on the activities of living things.
The main types of environmental pollution are air pollution, water pollution, noise pollution, thermal pollution, soil pollution and light pollution.
Deforestation and dangerous gaseous emissions also lead to environmental pollution. Over the past 10 years, the world has witnessed a severe increase in environmental pollution.
We all live on planet earth, which is the only planet known to have an environment, where air and water are two basic things that sustain life. Without air and water the earth would be like the other planets - there is no man, no animals, no plants. The biosphere in which living things have their sustenance has oxygen, nitrogen, carbon dioxide, argon, and water vapor. All of these are well-balanced to ensure and help a healthy growth of life in the animal world. This balance not only helps the life cycles of animals and plants, but also creates the perennial sources of minerals and energies without which today's human civilization could not be built. It is by this balance that human life and other forms of existence have flourished on earth for so many thousands of years.