What is environment? What is environmental pollution?

The environment is defined as the totality of man’s surroundings including both natural and man-made surroundings including natural resources like land, water, air, fauna and flora and raw . materials or man-made resources such as cultural heritage, socio-economic institutions and the people. Environmental pollution refers to the injection of harmful substances into the environment which cause change in the physical, chemical and biological characteristics of air, land and water and can harm the life of humans and other species.