Презентация к уроку "Экология"
презентация к уроку по английскому языку (7 класс)

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Ecological Problems the presentation has been made by Kalchenko E.A the teacher of English school640

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Pollution The contaminants could be industrial chemicals, garbage, liquid refuse, noise, heat, light. The most dangerous for our planet is the pollution of air, water and soil

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Air Pollution What generates air pollution? Human activities and natural processes like volcanic eruptions and gas leakages can both cause pollution.

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Air Pollution. What acid rain is? Acid rain is a rain or any other form of precipitation that is unusually acidic. Acid rain is caused by emissions of sulphur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.

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Effects that air pollution caused - diseases, allergies and even death to humans - harm to other living organisms such as animals and food crops - damage buildings, monuments and other objects - destroy animals habitats and kill them - the global warming severe

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Health effects of pollution

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Vocabulary. If you don’t know the meaning of these words, look them up in the dictionaries. Make up phrases with them. Use your notes to give a talk about acid rain. a power station - factory waste - acid rain - polluted clouds- toxic fumes- loss of natural habitats - air, water and soil pollution- to emit - to burn coal, petrol- to land- to wipe out- to breath- distance- harmful substances- power station- industry- solar power- to poison-

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Collocations 1 toxic a species 2 factory b fumes 3 acid c rain 4 natural d habitats 5 soil e power 6 plant f waste 7 solar g rain

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Air Pollution. The global problem some facts -we breath in about 20,000 liters of air each day; -in Cairo, Beijing and Mexico just breathing the air is life threatening-equivalent to smoking 2 packs of of cigarettes a day; -nearly 50 %of lakes in the USA are extremely polluted. Fishing and swimming are not allowed; the average American produces 4 pounds of garbage daily; -

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Water pollution When toxic sleet, garbage, industrial wastes, plastic fall into the water, they make it toxic. It harms, kills or wipes out fish, plant and animal species. out fish, plants and animals

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Soil Pollution When acid rain flows through the soil, it poisons trees, plants, crops

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How to reduce pollution How to save the Earth? Governments have been trying to reduce the pollution; -use new technologies to make factory smoke less harmful -not to dump harmful waste into water -use environmentally friendly energy -use 3RRR- reuse, recycle, reduce Every person has an ability to help stop pollution; -join the environment program - educate others if you are aware --walk or ride instead of drive -use public transport -not to litter -keep one’s neighbourhood clean and tidy

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Thank you for attention