Then because of the weathering of rocks, the phosphate remains in the soil, were plants take up the phosphate from the soil. But from here, apart from the plants getting the phosphate in the soil, because of the leaching, the ground water may flow into a lake or other body of water, were this phosphate becomes locked in sediments, making by this over the years new rocks, making the hole cycle start again. This is called, sedimentation.
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