Q. Which of the following is NOT a Sedimentary biogeochemical cycle?

[A] Phosphorous

[B] Nitrogen

[C] Calcium

[D] Magnesium

Answer: B

Explanation: Phosphorus, calcium and magnesium circulate by means of the sedimentary cycle.

The element involved in the sedimentary cycle normally does not cycle through the atmosphere but follows a basic pattern of flow through erosion, sedimentation, mountain building, volcanic activity and biological transport through the excreta of marine birds.

Source: SHANKAR IAS Environment