Saving the earth

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Saving the earth
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Earth
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USA Alska
Lake Baikal
Russia
Germany
Dunhuang Gebi
China
Mediterranean Sea
India
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Air
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Water
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4.Air pollution and water pollution are the two
causes of problem that many parts of the world
have become desert.
Ture or False

• Many parts of the world with large population and
  plenty of crops have become desert.

T
2.Land may become poor if farmers do not limit
their cattle.
T
3.Good soil is gradually lost these days as
trees are being cut down
T
F
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5. Chemicals in the smoke from power stations can
travel hundreds of miles before falling down to
the rain.
F
6. After a bad accident at a nuclear power
station, 50of the trees in Germany were damaged.
F
7. The writer uses the examples of the accidents
in both India and Russia to explain how water is
polluted.
F
8. Once oceans are polluted, they are not able to
clean themselves.
F
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The main idea of each passage
The area of desert is growing and good soil is
gradually lost.
Earth
Chemicals in the smoke cause a lot of damage and
serious accidents took place from time to time.
Air
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Water pollution is caused by mans waste. The
waters of this great lake have been dirtied and
4800 square km of ocean were polluted by oil.
Water
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DISCUSSION
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