воздух на английском

Ответ от Елена Гужвенко[гуру]
Water Pollution There is no ocean or sea which is not used as a dump. The Pacific Ocean, especially, has suffered from nuclear pollution because the French Government tests nuclear weapons there. Many seas are used for dumping industrial and nuclear waste, Britain alone dumps 250,000 tons of industrial waste straight into the North Sea. This poisons and kills fish and sea animals. "Nuclear-poisoned" fish can be eaten by people. Many rivers and lakes are poisoned too. Fish and reptiles can\'t live in them. There is not enough oxygen in the water. In such places all the birds leave their habitats and many plants die. It is not just animals that are in danger. So are plants. The world had over nine million sq. km. of forests. This is a lot of trees, and also a lot of different species of trees. But they are disappearing fast. Every day we use paper and cardboard, both made from wood. We use different kinds of wood in furniture and in other ways. Every year over 100 000 sq. km. of forests are cleared for different uses, and a lot of forests are so badly damaged that they will hardly be able to recover. If we go on like this, by the time you are as old as your grandparents are now all the forests on earth can be destroyed. This includes rainforests in South America, Africa and Asia. The huge forests help to control the world\'s weather, and to produce much of the oxygen in the air. There are many illnesses which we still cannot cure. There are old ones like cancer and new ones like AIDS. It may be that the medicines we need will be discovered in wild plants in savannas, deserts or rainforests. If we destroy, these places, we will never find the cute; So you see that it is not just children who need a healthy space to live and grow. If we want our lives to be healthy and interesting, a lot of other creatures and plants need growing space too. If people drink this water they can die too. It happens so because factories and plants produce a lot of waste and pout, it into rivers. So they poison the water. Factories use clean water. After the water is used it becomes poison which goes back into rivers, lakes and seas. Air Pollution More and more often people are told not to be in direct sunlight, because ultraviolet radiation from the sun can cause skin cancer. Normally the ozone layer in the atmosphere protects us from such radiation, but if there are holes in the ozone layer ultra¬violet radiation can get to the earth. Many scientists think that these holes are the result of air pollution. Nuclear power stations can go wrong and cause nuclear pollution. This happened in Windscale in Britain, in Three Mile Island in the USA and Chernobyl in the former Soviet Union. Nuclear pollution cannot be seen but its effects can be terrible. To make air clean again we need good filters at nuclear power stations, at factories and plants and also in cars and buses. Both clean air and clean water are necessary for our health. If people want to survive they must solve these problems quickly. Man is beginning to understand that his environment is not just his own town or country, but the whole earth. That\'s why people all over the world think and speak so much about ecology.