When the concentration of the soil solutes is low, the absorption of water

Options

A. remains normal
B. is stopped
C. is increased
D. is decreased

Answer

### Step-by-Step Solution:

1. **Understanding the Concept of Osmosis**:
- Osmosis is the movement of water across a semi-permeable membrane from an area of lower solute concentration (more dilute) to an area of higher solute concentration (less dilute).

2. **Identifying the Conditions**:
- In this scenario, we have a low concentration of solutes in the soil. This means that the soil solution is more dilute compared to the concentration of solutes inside the plant roots.

3. **Analyzing Water Movement**:
- Since the concentration of solutes in the soil is low, the water in the soil is more dilute compared to the water inside the plant roots. According to the principles of osmosis, water will move from the area of lower solute concentration (soil) to the area of higher solute concentration (roots).

4. **Conclusion on Water Absorption**:
- As a result, when the concentration of soil solutes is low, the absorption of water by the plant roots will **increase**. This is because water moves into the roots to balance the solute concentrations.

### Final Answer:
When the concentration of the soil solutes is low, the absorption of water **increases**.

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