Pollution is the introduction of harmful materials into the environment this harmful materials are called pollutants pollutants can be natural such as volcanic as we can also be faded by human activities such as trash or run of produced by factories the process of making land water and air dirty by doing a lot of damage to the earth or we can say the pollution with introduction of impure and harmful substances into the environment this harmful I am your substances not only if I environment but also and reduces diseases that could kill or living toxic chemicals released in water have killed aquatic life and also produced to quality affair toxic gases released in the air cause different lung diseases such as pollution is a big problem that happens when things get into the air water and land account it can be from factories cars or even how we are trash polution is not good because it can make people and animals sick and even change the weather