Environment & Ecology · Environment

With reference to major biogeochemical cycles on Earth, consider the following statements: I. The atmosphere functions as the principal reservoir of nitrogen in the global nitrogen cycle. II. In the global carbon cycle, the oceans act as the largest long-term sink of carbon, absorbing and storing more carbon than the atmosphere. III. The dominant natural reservoir of phosphorus occurs in rocks and sediments of the lithosphere, rather than in the atmosphere. Which of the statements given above are correct?