What is pollution?

What is pollution? Pollution is when water, air or land becomes very dirty. Pollution can come in 4 different types effecting different types of areas in the world. Air pollution effects the air, water pollution effects the water and marine life, land pollution effects the land destroying life and the enviroment and there is also noise pollution that can effect our hearing.We all contribute to pollution in some way or another. Whether it be with a large amount or small amount we can still cause major damage to our health and the enviroment. Although we all contribute to help stop the increase of pollution. Very little people realize that pollution is very harmful because they don't think of the enviroment, themselves and other people and what it can do.Pollution is an important factor to our lives. It involves our society and all other animals. Pollution is gradually destroying our planet and is gradually killing ourselves too. Like air pollution, smog and acid rain is a killer to all of us. It destroys marine life, our own health and destroys historical monuments and statues.