environment-it's conditions in which we live. So we have to protect it. Nowadays people understand how environment is important. So the most of people want to keep it for their children. The most serious problems are: pollution in its many forms - air pollution,water pollution,nuclear pollution. For example air pollution damages atmosphere and it pollutes air we breathe in. Water pollution is also dangerous. Some factories dump nuclear waste into rivers,lakes and etc. Water turns poisonous and fishes die. So people have to become eco friendly until it's not too last.