The air consists of A nitrogen, 1/5 oxygen and a little bit of other gases. If their amount is too big, we can talk about pollution. From all poisons that people get into their organism 70% come with food, 20% with air and 10% with water. The air pollution generates climate changes, pollutes ground, damages forests and ecosystem, generates acid rain and is a cause of acid water into lakes and rivers. And, of course, it ill affects respiratory organs. …
