Weathering - OAK PARK USD
Usually caused by sediment in wind, running water, and glaciers. 2 main types: Wind abrasion - sandblasting . effect on stationary rocks (creates sandstone arches) & Hydraulic abrasion - water & sediments. flowing over boulders (like in rivers with rapids.) 3. Plants and Animals (mechanical/physical) Animals also dig . holes, which can break up ... ................
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