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In case of which one of the following biogeochemical cycles, the weathering of rocks is the main source of release of nutrient to enter the cycle?
(a) Carbon cycle
(b) Nitrogen cycle
(c) Phosphorus cycle
(d) Sulphur cycle



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In the phosphorus cycle, weathering of rocks is the primary source of nutrient release. It involves the breakdown of rocks, which releases phosphorus into the soil and water. This allows plants and other organisms to access phosphorus for growth and metabolism. In contrast, other biogeochemical cycles like the carbon, nitrogen, and sulphur cycles involve different processes and sources of nutrient release.


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