Pollution - is a process of negative modifications of the environment - air, water, soil - that threatens the lives of living organisms. The word environment means simply what is around us. Some people live in a town environment; for others, their environment is the countryside. But the air we breathe, the soil on which we stand and walk, the water we drink are all part of the environment. Nowadays people understand how important it is to solve the environmental problems that endanger people’s lives. The most serious environmental problems are: pollution in its many forms; noise from cars, buses, planes; destruction of wildlife and the beauty of the countryside; shortage of natural resources; the growth of population.
