Identify two forces through which ocean waves cause erosion.

Wave erosion occurs when waves wear down rock in the ocean floor and turn them into sand. This is how some beaches' sand is made. The waves will also pick up rocks and throw them down or just split them open. Waves cause erosion by the force of the wave onto the ground below it and it picks up sand and rocks.

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Answer feldspar,quartz,mica and amphibole;

Answer (datum point);