Answers

2014-02-27T20:21:21+08:00
Soil is the key to life. Without good soil we will not be able to produce enough food and the quality will be poorer.It is also to help save mother Earth. :)
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2014-03-01T11:53:38+08:00
It can lessen the pollution, why? It is because if we plant trees we can lessen pollution. Trees can help lessen pollution. Solution for pollution
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