The following evidences rejected the atmospheric pressure theory. Which of them is incorrect

Options

A. It can raise water to height of 32 feet only if complete vacuum is created
B. Free surface of water is required for proper operation of atmospheric pressure which is readily available in plants
C. Pressure falls below that of atomspheric pressure because of transpiration
D. Water rises repidly to compensate the water loss because of atmopheric pressure.

Answer

To solve the question regarding which evidence is incorrect in rejecting the atmospheric pressure theory, we will analyze each option provided in the context of the theory and its implications.

### Step-by-Step Solution:

1. **Understanding the Atmospheric Pressure Theory**:
- The atmospheric pressure theory explains the ascent of sap (the upward movement of water and nutrients) in plants. It suggests that atmospheric pressure plays a significant role in this process.

2. **Evaluating the Options**:
- **Option A**: "It can raise water to a height of 32 feet only if complete vacuum is created."
- This statement highlights a limitation of the atmospheric pressure theory. Since many trees exceed this height, it indicates a flaw in the theory. Thus, this option supports the rejection of the theory.

- **Option B**: "Free surface of water is required for proper operation of atmospheric pressure which is readily available in plants."
- This statement suggests that the atmospheric pressure theory relies on the availability of a free water surface. This is not a drawback but rather a condition that supports the theory. Therefore, this option does not contribute to the rejection of the theory.

- **Option C**: "Pressure falls below that of atmospheric pressure because of transpiration."
- This statement indicates that transpiration causes a drop in pressure, which contradicts the atmospheric pressure theory. This is a valid point against the theory, thus supporting its rejection.

- **Option D**: "Water rises rapidly to compensate for water loss because of atmospheric pressure."
- This statement implies that water can rise quickly due to atmospheric pressure, which also contradicts the theory. Hence, it is another point supporting the rejection of the atmospheric pressure theory.

3. **Identifying the Incorrect Evidence**:
- After evaluating all options, we find that **Option B** is the only statement that does not support the rejection of the atmospheric pressure theory. Instead, it describes a condition that is favorable to the theory.

### Conclusion:
The incorrect evidence that does not support the rejection of the atmospheric pressure theory is **Option B**.

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