Air pollution

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This is our planet many years ago

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It was so clean and so beautiful

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Every year world industry pollutes the atmosphere with about 1000 million tons of dust and other harmful substances. Many cities suffer from smog.

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Cars pollute the air on the Earth The more machines, the more pollution

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Causes of chemical waste are atomic and chemical stations the exhaust fumes, radioactive waste.

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Forests are lungs of our planet.

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People cut the trees down because they need wood and paper or new places for houses.

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Pros and cons It is very difficult problem because Cars pollute the air but they provide transportation for the people, Factories pollute the air and water but they provide jobs for people and produce necessary goods. What should we do? What should we do? ??????? ????????

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The presentation was made by Alexei Ivanov and Makhalov Alexander, Isakova Maria