1. Pollution danger

2. Air pollution is the introduction of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or damages the natural environment, into the atmosphere.chemicals particulate matter biological materials natural environment atmosphere The atmosphere is a complex, dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth's ecosystems.EarthStratospheric ozone depletionecosystems

10. Water pollution

11. Water is the environment in which life was created without a clean and healthy water no life. Most of the rivers, especially in developed countries, have become the channels of waste water. Industrial and municipal wastewater overcome the capacity of water flows, so water is not able to break down the waste.

14. The End