I believe the answer is C, hope this helps!
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what is the question i didnt understand
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Erosion occurs if weathered materials such as soil and rock fragments are carried away by wind, water or ice. Many forces are involved in weathering and erosion, including both natural and man-made causes. I hope this helps
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Though the earth is 75% water, less than 1.2% is actually drinkable.
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I think it's 2 and 4 if not then sorry