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What are four the main causes of erosion? wind, water, ice, gravity O biological, chemical, mechanical, subterranean O freezing, hydration, oxidation, salt crystallization O seismic movement, vocalism, mountain building, ocean waves​

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Answer:

Water, wind, ice, and gravity

Step-by-step explanation:

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User Anushka
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Water, wind, ice, gravity
User Acelot
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