The function of reservoir pool is to meet with the deficit of nutrient that occurs due to

Options

A. imbalance in rate of efflux and influx of nutrients.
B. only efflux of nutrients
C. ceased nutrient cycle
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the function of the reservoir pool in relation to nutrient deficiency. Specifically, it inquires about the circumstances under which the reservoir pool becomes active to address nutrient deficits.

2. **Defining Reservoir Pool**: The reservoir pool refers to the main storage site for nutrients within an ecosystem. It acts as a source of nutrients that can be released when there is a deficiency in the ecosystem.

3. **Analyzing the Options**:
- **Option 1**: Imbalance in the rate of efflux (outward movement) and influx (inward movement) of nutrients. This suggests that when the rates of nutrients moving in and out are not equal, a deficiency can occur.
- **Option 2**: Only efflux of nutrients. This implies that nutrients are only leaving the system. While this may create an imbalance, it does not necessarily lead to a deficiency since there may still be nutrients present.
- **Option 3**: Ceased nutrient cycle. If the nutrient cycle is halted, there would be no movement of nutrients in or out, which means there would be no deficiency created.
- **Option 4**: None of these. This option suggests that none of the previous statements are correct.

4. **Evaluating the Options**:
- **Option 1** is the most plausible because an imbalance between the influx and efflux can lead to a nutrient deficiency, prompting the reservoir pool to function and restore nutrients.
- **Option 2** does not lead to a deficiency since it only describes outward movement.
- **Option 3** indicates a complete halt in nutrient movement, which does not create a deficiency.
- **Option 4** is incorrect as we have identified a valid option.

5. **Conclusion**: The correct answer is that the function of the reservoir pool is to meet the deficit of nutrients that occurs due to an imbalance in the rate of efflux and influx of nutrients.

**Final Answer**: The function of the reservoir pool is to meet the deficit of nutrients that occurs due to an imbalance in the rate of efflux and influx of nutrients.

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