【正文】
h large population and plenty of crops have bee desert.(T) 2. Land may bee poor if farmers do not limit their cattle.(T) 3. Good soil is gradually lost these days as trees are being cut down.(T) 4. Air pollution and water pollution are the two causes of problem that many parts of the world have bee desert.(F) 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, 50%of 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) Phenomena Causes Suggestions E A R T H The area of desert is growing every year. Good soil is gradually lost. A I R Air is being polluted. A lot of people died from polluted air in both Russia and India. Trees in the