Amount of water left in soil after through drainage of gravitational water is known as:

Options

A. Field capacity
B. Storage capacity
C. Soil water
D. Gravitational capacity

Answer

To solve the question regarding the amount of water left in the soil after thorough drainage of gravitational water, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Gravitational Water**:
- Gravitational water is the water that drains through the soil due to the force of gravity. This water is not held by the soil particles and can move freely through the soil profile.

2. **Identify What Happens After Drainage**:
- After gravitational water drains away, there is still some water retained in the soil. This is the water that is held in the soil's micropores and is not subject to gravitational pull.

3. **Define Field Capacity**:
- The amount of water remaining in the soil after all gravitational water has drained is referred to as the field capacity. It represents the maximum amount of water the soil can hold against the force of gravity.

4. **Consider the Options Given**:
- Option 1: Field Capacity
- Option 2: Storage Capacity
- Option 3: Soil Water
- Option 4: Gravitational Capacity

5. **Select the Correct Answer**:
- Based on the definition and understanding of field capacity, the correct answer to the question is **Option 1: Field Capacity**.

### Final Answer:
The amount of water left in soil after thorough drainage of gravitational water is known as **Field Capacity**.

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