Which processes relate to mechanical weathering? Check all that apply.freezing and thawingplant growthoxidationabrasionacid rain

Mechanical weathering breaks rock into smaller pieces without changing its chemical composition. Freezing and thawing can widen cracks, plant roots can push rocks apart as they grow, and abrasion wears rock down through rubbing or scraping. Oxidation and acid rain cause chemical changes, so they are chemical weathering.

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