Question

Which one is a sedimentary cycle?

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

Answer 1

Answer: (D)

Phosphorus cycle

There are 4 layers of Earth, namely lithosphere (land), hydrosphere (water), biosphere (living), and atmosphere (air). Lithosphere of Earth makes up the hard and rigid outer layer of the Earth. It is reservoir of phosphorus. The largest reservoir of phosphorus is sediments or sedimentary rocks. Hence, phosphorous cycle represents sedimentary type of nutrient cycle or simply sedimentary cycle.

Thus, the correct answer is 'Phosphorous cycle.'