In sedimentary cycles, the reserve pool is

Options

A. Air
B. Water
C. Lithosphere
D. Lithosphere and atmosphere

Explanation

**Step-by-Step Solution:**

1. **Understanding Sedimentary Cycles**: Begin by defining what sedimentary cycles are. These cycles involve the movement and transformation of minerals and nutrients through various Earth systems, primarily focusing on the lithosphere (earth's crust) and its interactions with other spheres.

2. **Identifying the Reserve Pool**: In sedimentary cycles, the reserve pool refers to the primary source or storage area of minerals and nutrients. This is crucial for understanding how these elements are cycled through the ecosystem.

3. **Analyzing the Options**: The options provided are:
- A) Air
- B) Water
- C) Lithosphere
- D) Lithosphere and atmosphere

4. **Selecting the Correct Answer**: Based on the definition of the reserve pool in sedimentary cycles, the lithosphere is the correct answer. It serves as the main reservoir for minerals that are cycled through weathering processes.

5. **Conclusion**: Therefore, the reserve pool in sedimentary cycles is the lithosphere, which is option C.

**Final Answer**: The reserve pool in sedimentary cycles is the lithosphere (Option C).

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