Which of the following options has both correct combinations?

Correct answer: C. (c)

  • A. (a)
  • B. (b)
  • C. (c)
  • D. (d)

Explanation

Biogeochemical cycles are of two types: gaseous and sedimentary. In gaseous nutrient cycles, the materials involved in circulation between biotic and abiotic components of the biosphere are gases or vapours and the reservoir pool is the atmosphere or hydrosphere, e.g., carbon, hydrogen, oxygen, nitrogen, water. In sedimentary nutrient cycles, materials involved in circulation between the biotic and abiotic components of biosphere are non­ gaseous and the reservoir pool is the lithosphere, e.g., phosphorus, calcium, magnesium. Sulphur has both sedimentary and gaseous nutrient cycles.

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