Major source of sulphur is

Options

A. oceans
B. land
C. rocks
D. lakes.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the major source of sulphur among the options provided: ocean, land, rocks, and lakes.

2. **Identifying Sulphur Sources**: Sulphur is an element found in nature and can be sourced from various natural reservoirs.

3. **Analyzing the Options**:
- **Ocean**: Oceans contain dissolved sulphates but are not the primary source.
- **Land**: Land can contain sulphur in various forms, but it is not the major source.
- **Rocks**: Rocks are known to be a significant reservoir of sulphur, often found in the form of sulphate minerals.
- **Lakes**: Similar to oceans, lakes may contain sulphates but are not the primary source.

4. **Conclusion**: After analyzing all the options, it is clear that the major source of sulphur is found in rocks. Therefore, the correct answer is **rocks**.

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