Презентация к уроку английского языка на тему "Загрязнение окружающей среды" 7 класс
презентация к уроку по английскому языку (7 класс)

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. Pollution is the introduction of harmful materials into the environment Many things that are useful to people produce pollution.

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There are different types of pollution: water pollution , air pollution, land pollution, soil pollution, noise pollution

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Some polluted water looks muddy, smells bad, and has garbage floating in it. Some polluted water looks clean, but is filled with harmful chemicals you can’t see or smell .

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The sea is full of bacteria, plants and animals which eat waste. The sea cleans itself, but plants and bacteria can’t recycle it quickly. Polluted water is unsafe for drinking and swimming.

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4,000 children die every day from drinking dirty water. Chemicals from farms and factories get into the river and the rivers carry the waste to the sea.

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The chemicals get into the food chain. Animals carry plastics in their bodies. Since one animal eats another , plastics can move through the food chain.

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The worst kind of sea pollution is oil spills Oil has become the world's most important source of energy but when oil spills into the ocean, it can cause big problems. Oil spills can harm sea creatures.

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If oil gets in the sea water, it stays on top of it. Air can’t get to the plants and animal under the water and the die. Water birds become dirty with oil and are not able to fly.

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The largest accidental oil spill in history took place in 2010 in the Gulf of Mexico when millions of tons of oil went into the sea. People had to work for months to stop the pollution