Question

Which one of the following is not a gaseous biogeochemical cycle in the ecosystem?

• A. Oxygen cycle
• B. Nitrogen cycle
• C. Carbon cycle
• D. Phosphorus cycle

Answer 1

Answer: (D)

Phosphorus cycle

Answer 2

The Correct option is D: Phosphorus cycle

There are two main types of nutrient cycles: (a) gaseous cycles and (b) sedimentary cycles. Gaseous cycles, such as nitrogen and carbon, have nutrient reserves in the atmosphere and oceans. In contrast, sedimentary cycles, like the phosphorus cycle, have their nutrient reserves in the soil, rocks, and minerals. Elements in sedimentary cycles are released from rocks and deposited in the sea. Notably, the phosphorus cycle does not include a gaseous phase.