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ããTrees help to stop the wind.When there are no trees, the wind blows more strongly over the land. Strong winds can hurt the piants. they can aslo blew away the soil.Heavy rain can aiso carry away the soil. Trees help stop this. When there are no trees, the heavy rain carries a lot of soil into the river.When this happens,the rivers become full ,the land becomes poorer and it becomes harder to grow things
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