Select the statements regarding "Good soil"
a. The maximum amount of water soil can hold and it is called field capacity.
b. The loamy soil has high field capacity and it has more amount of hygroscopic water.
c. Gravitational water is runaway water.
d. capillary water is present inside the microspores of soil and is the water that is available to plant roots.

Options

A. a and b
B. a and d
C. b and c
D. c and d

Answer

To solve the question regarding "Good soil" and select the correct statements, let's analyze each statement step by step.

### Step-by-Step Solution:

1. **Statement A: "The maximum amount of water soil can hold and it is called field capacity."**
- This statement is correct. Field capacity refers to the maximum amount of water that soil can retain after excess water has drained away and the rate of downward movement has decreased. It is crucial for understanding soil water availability for plants.

**Hint:** Remember that field capacity is a key concept in soil science, indicating the water available for plant use.

2. **Statement B: "The loamy soil has high field capacity and it has more amount of hygroscopic water."**
- This statement is incorrect. While loamy soil is known for its balanced texture and good drainage, it does not have the highest field capacity. Clay soil has a higher field capacity due to its finer particles that retain more water. Additionally, hygroscopic water is the water that adheres tightly to soil particles and is not available to plants.

**Hint:** Different soil types have varying capacities to hold water; clay retains more than loamy soil.

3. **Statement C: "Gravitational water is runaway water."**
- This statement is also incorrect. Gravitational water refers to the water that moves through the soil due to gravity and is not "runaway" water. It is typically found in the larger pores of the soil and drains quickly, making it less available for plant uptake.

**Hint:** Gravitational water is essential for understanding how water moves through the soil profile.

4. **Statement D: "Capillary water is present inside the microspores of soil and is the water that is available to plant roots."**
- This statement is correct. Capillary water is held in the micropores of the soil and is available for plants to absorb. It is crucial for plant growth as it provides the necessary moisture for their physiological processes.

**Hint:** Capillary water is vital for plant roots, as it is the water they primarily use for absorption.

### Final Conclusion:
Based on the analysis:
- **Correct Statements:** A and D
- **Incorrect Statements:** B and C

Thus, the correct answer to the question is that statements A and D are true regarding "Good soil."