Which of the following pair is a sedimentary type of biogeochemical cycle?

Options

A. Oxygen and nitroge
B. Phosphorous and sulphur
C. Phosphorous and notrogen
D. Phosphorus and cabon dioxide

Explanation

To determine which pair represents a sedimentary type of biogeochemical cycle, we need to analyze the options provided and understand the characteristics of sedimentary cycles.

### Step-by-Step Solution:

1. **Understand Biogeochemical Cycles**:
Biogeochemical cycles are pathways through which essential elements and compounds circulate in the ecosystem, involving both biotic (living) and abiotic (non-living) components.

2. **Identify Types of Biogeochemical Cycles**:
- **Gaseous Cycles**: These cycles involve elements that exist in gaseous forms in the atmosphere, such as nitrogen and oxygen.
- **Sedimentary Cycles**: These cycles involve elements that primarily exist in solid form and are found in the lithosphere (earth's crust), such as phosphorus and sulfur.

3. **Analyze the Options**:
- **Oxygen and Nitrogen**: Both are primarily gaseous elements, thus they do not represent a sedimentary cycle.
- **Phosphorus and Sulfur**: Both are primarily found in solid forms in the lithosphere and are involved in sedimentary cycles.
- **Phosphorus and Nitrogen**: While phosphorus is sedimentary, nitrogen is gaseous, so this pair does not represent a sedimentary cycle.
- **Phosphorus and Carbon Dioxide**: Carbon dioxide is a gas, so this pair does not represent a sedimentary cycle.

4. **Conclusion**:
The only pair that represents a sedimentary type of biogeochemical cycle is **Phosphorus and Sulfur**.

### Final Answer:
The correct answer is **Phosphorus and Sulfur**.

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