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  5. Forests: Our Lifeline

7th Class Science Forests: Our Lifeline Question Bank Forests : Our Lifeline

  • question_answer
    Weathering and erosion of Earth's crust are primarily caused by

    A) gravity             

    B) volcanic activity

    C) evaporation                

    D) sedimentation

    Correct Answer: B

    Solution :

    volcanic activity


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