Biogeochemical Cycles

Choose the Correct Answer

Correct Answer : Option c

Explanation
Statement 1 is correct: In a sedimentary biogeochemical cycle, the lithosphere (including soil, rocks, and sediments) serves as the primary reservoir of nutrients, rather than the atmosphere. In contrast, gaseous cycles (such as the carbon and nitrogen cycles) primarily involve atmospheric exchanges.

Statement 2 is correct: The sulfur cycle is classified as a sedimentary biogeochemical cycle because sulfur is primarily stored in rocks, minerals, and oceanic sediments. Over time, geological processes like weathering, volcanic activity, and sedimentation release sulfur into ecosystems. Another example of a sedimentary cycle is the phosphorus cycle, which also lacks a significant atmospheric component.