Рollution of atmosphere Презентация ученицы 11 – А класса Булавки Алёны. - презентация

1 Рollution of atmosphere Презентация ученицы 11 – А класса Булавки Алёны

2 There are three main sources of air pollution: industry, domestic boilers, transport.

3 Рollution of atmosphere is a result of emissions from industry, transport and other enterprises dust and heavy metals.

4 The natural sources include: volcanoes, dust storms, forest fires, dust, cosmic origin, sea salt particles, products of plant, animal and microbial origin.

5 Large share of air pollution emissions constitute harmful substances from cars. One passenger car absorbs from the atmosphere each year, on average more than 4 tons of oxygen, releasing the exhaust gases of about 800 kg carbon monoxide and about 40 kg of nitrogen oxides and various almost 200 kg hydrocarbons.

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7 Аcid rains beforeafter

8 Scientists believe that the thousands of deaths each year in cities around the world are connected with air pollution.

9 This problem should worry everyone, make you think... about our future, induce thinking... about how to cope with the problem of air pollution, it just all together and under force.