Since ancient times nature has served man, being the source of his life. For thousands of years people lived in harmony with environment. - презентация

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2 Since ancient times nature has served man, being the source of his life. For thousands of years people lived in harmony with environment

3 But with the development of civilization man's interference in nature began to increase...

4 Large cities with thousands of smoky industrial enterprises have appeared all over the world today. Large cities with thousands of smoky industrial enterprises have appeared all over the world today.

5 The byproduct of their activity pollutes the air we breathe the air we breathe the water we drink the land we grow grain

6 And all the atmosphere

7 Vast forests are cut and burn in fire

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9 Some species of animals,

10 birds,

11 fish and plants

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13 a number of lakes and rivers dry up

14 We faces many ecologic al problems

15 Air pollution

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17 Land pollution

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19 Greenhouse effect

20 Killing animals

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23 The environment is so beautiful! We should preserve it!

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