In case of which one of the following biogeochemical cycles, the weathering of rocks is the main source of…

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?
  1. Carbon cycle
  2. Nitrogen cycle
  3. Phosphorus cycle
  4. Sulphur cycle

Solution

The phosphorus cycle is a sedimentary cycle in which phosphate rocks are the main reservoir, and weathering of rocks releases phosphorus into the soil and water, making it available to organisms.

Asked in: UPSC Prelims 2021

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