Run-off from fields is

Options

A. Point source pollution
B. line source pollution
C. area source pollution
D. diffuce source pollution

Answer

### Step-by-Step Solution:

1. **Understanding Run-off from Fields**:
- Run-off from fields refers to the water that flows over the land surface from agricultural fields, which can carry fertilizers, pesticides, and other pollutants into nearby water bodies.

2. **Identifying Types of Pollution**:
- There are different types of pollution sources:
- **Point Source Pollution**: Contaminants that enter the environment from a specific, identifiable source (e.g., pipes, smokestacks).
- **Line Source Pollution**: Pollution that comes from a linear source, such as roadways or railways.
- **Area Source Pollution**: Pollution that comes from a specific area but is not easily identifiable as a single source.
- **Diffuse Source Pollution**: Pollution that comes from multiple, dispersed sources and is often associated with runoff.

3. **Analyzing the Options**:
- **Point Source Pollution**: Incorrect, as run-off does not come from a single identifiable source.
- **Line Source Pollution**: Incorrect, as run-off does not originate from a linear source.
- **Area Source Pollution**: Correct, as run-off from fields is a type of non-point source pollution that can be attributed to agricultural areas.
- **Diffuse Source Pollution**: Incorrect, as this term is broader and does not specifically categorize run-off from fields.

4. **Conclusion**:
- The correct answer to the question "Run-off from fields is" is **Area Source Pollution**.