Презентация для урока в 8 классе по теме " Save the planet" №5

Vorobev Sergei

Earth's atmosphere as a result of her admission to the

various gases, water vapor and particulate matter (due to natural processes or human activities)

atmosphere as a result of natural processes such as volcanic

eruptions, accompanied by the emission of ash into the atmosphere, scattered acids, including sulfuric acid, and a variety of toxic gazy.Fires that led to the formation of dense clouds of smoke enveloping large areas, and dust storms.

ways: 1) delivering particulate matter and toxic gases in the

respiratory tract of humans and animals and in the leaves of plants, and 2) increasing the acidity of precipitation, which, in turn, affects the chemical composition of the soil and water, and 3) promoting such chemical reactions in the atmosphere that lead to prolonged exposure of living organisms harmful sun rays, and 4) changing the global composition and temperature of the atmosphere and thus creating conditions unfavorable for the survival of organisms.

air pollution. And they are being built more and more.

Factories pollute the air with toxic gases which are harmful to health. In our time in the world the air is polluted with harmful substances. Unfortunately, a man creates himself what kills him. For example, a car, its exhaust gases contain lead and other harmful to human health. In large amounts, these substances are deposited on the ground near the freeways and highways. Do not collect mushrooms, healthy herbs, berries less than 100m. of the road, because all of the plants absorb the toxic substance. In the cities the air is very polluted harmful industrial emissions.