1a education in czech republic, great britain and usa



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Air pollution is the biggest problem in large cities and in areas with concentrated industrial production. Emissions range from smoke, dust, and smells to car and lorry exhausts. Smoke contains sulphur dioxide (SO2), nitrogen oxide (NO) and carbon dioxide witch are produced by coal-fired power stations and factories. Substances such as SO2 and NO can cause major changes in the environment which can lead to climate changes.

These substances mix with water vapour in the atmosphere and from sulphuric acid and nitric acid. Sunlight turns these acids into poisonous oxidants which fall in the form of acid rain onto trees and kill them.



Trees are vitally important for our life because they are the lungs of our planet. They absorb carbon dioxide from the air and give our oxygen in return. In some parts of the world, such as Asia and South America, trees are not threatened by pollution, but by people. The great rain forests are being destroyed for firewood and building materials. (The Amazon rain forest covers an area as large as the whole of Europe and contains one third of the world’s trees, provides 50 per cent of the world’s annual production of oxygen). If we lose tropical forests, it will become more difficult, perhaps even impossible, to breath. With more carbon dioxide in the air, the temperature will rise; the ice-caps at the North and South Poles will melt, and the sea level will rise which will result in the flooding of many coastal cities.




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