Major constituent of soil is

Options

A. Organic matter
B. Inorganic matter
C. Soil air
D. Soil water.

Answer

To determine the major constituent of soil, we need to analyze the different components that make up soil and their approximate percentages.

### Step-by-Step Solution:

1. **Identify the Components of Soil**: Soil is composed of various constituents, including organic matter, inorganic matter, soil air, and soil water.

2. **Determine the Percentage of Each Component**:
- **Organic Matter**: Approximately 5% of the soil is organic matter.
- **Inorganic Matter**: This is the major component, making up about 40-45% of the soil.
- **Soil Air**: Soil air constitutes about 25% of the soil.
- **Soil Water**: Soil water also makes up about 25% of the soil.

3. **Compare the Percentages**:
- Organic Matter: 5%
- Inorganic Matter: 40-45%
- Soil Air: 25%
- Soil Water: 25%

4. **Identify the Major Constituent**: From the percentages, it is clear that inorganic matter has the highest percentage (40-45%), making it the major constituent of soil.

5. **Select the Correct Answer**: Based on the analysis, the correct answer to the question "Major constituent of soil is" is **Inorganic Matter**.

### Final Answer:
The major constituent of soil is **Inorganic Matter**.

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