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    1、the exhaustion of resources;

    2、pollution from industrial production transform many clean rivers into undrinkable water.

    3、the convenience brought by cars, their harmful impact on the atmosphere.

    4、garbage output, such as plastics and glass.

    5、deforestation Global warming, current greenhouse effect remains out of control.

    6、human exploitation of natural resources.

    in 滴水之恩作文

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