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Deforestation



7. Deforestation
Deforestation is the destruction of forests on a large scale . Forests play a vital role in the world . But humans are destroying forests . Trees are being cut down for wood . They are used in paper-making . Forests are being destroyed for road building . They are cut down to provide land for large herds of cattle to graze on . In Africa rainforest has been burnt down to provide farmland for the poor . But this deforestation affects us all . Forests absorb heat . Rainforests absorb carbon dioxide . Without forests the atmosphere may warm up . The polar ice caps will melt . The sea level will be increased . As a result lower part of the world will go under water . This is the greenhouse effect . It is one of the serious effects of deforestation . Keeping these dangers in mind , we should preserve forests.

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