Which of the following is type of sedimentary cycle?

Question

Accepted Answer

Explanation:

1. **Why Option 3 is Correct (Sulphur, Phosphorus):**
   - **Sedimentary Cycle Definition:** A sedimentary cycle involves the movement of elements through the Earth's crust, often involving the weathering of rocks, sedimentation, and the eventual return of these elements to the Earth's surface.
   - **Sulphur Cycle:** The sulphur cycle is a sedimentary cycle because it involves the weathering of rocks that release sulphur into the soil and water. Sulphur is then taken up by plants and moves through the food chain. Eventually, it returns to the soil and sediments through processes like decay and sedimentation.
   - **Phosphorus Cycle:** The phosphorus cycle is another example of a sedimentary cycle. Phosphorus is primarily found in rocks and is released through weathering. It is then absorbed by plants and moves through the food chain. Unlike other cycles, phosphorus does not have a gaseous phase and is primarily cycled through sediments and soil.

2. **Why Other Options are Incorrect:**
   - **Option 1 (Nitrogen, Carbon):** Both nitrogen and carbon cycles are primarily gaseous cycles. The nitrogen cycle involves the movement of nitrogen through the atmosphere, soil, and living organisms, with key processes like nitrogen fixation and denitrification. The carbon cycle involves the exchange of carbon between the atmosphere, oceans, and living organisms, with processes like photosynthesis and respiration.
   - **Option 2 (Nitrogen, Sulphur):** While sulphur is part of a sedimentary cycle, nitrogen is not. As mentioned, the nitrogen cycle is primarily gaseous, involving atmospheric nitrogen and its conversion into usable forms for organisms.
   - **Option 4 (Phosphorus, Carbon):** While phosphorus is part of a sedimentary cycle, carbon is not. The carbon cycle is primarily gaseous, involving the exchange of carbon dioxide between the atmosphere and living organisms, as well as its dissolution in oceans.

In conclusion, Option 3 is the correct answer because both sulphur and phosphorus are elements that primarily cycle through sedimentary processes, involving the weathering of rocks and movement through the Earth's crust.