Asphalt is used for /as

Options

A. aviation fuel
B. making road surface
C. running water pumps
D. dry cleaning of clothes

Explanation

### Step-by-Step Solution:

1. **Understanding Asphalt**:
- Asphalt is a material that is primarily composed of bitumen, a sticky, black, and highly viscous liquid or semi-solid form of petroleum. It is often mixed with aggregates like small stones, sand, and gravel.

2. **Common Uses of Asphalt**:
- Asphalt is widely used in construction and civil engineering. Its primary applications include:
- **Road Paving**: Asphalt is extensively used to create the surface of roads. It provides a durable and smooth surface for vehicles.
- **Roofing Material**: It is also used in roofing applications, providing waterproofing and protection for buildings.

3. **Other Applications**:
- Besides road paving and roofing, asphalt can be used in various other applications, such as:
- **Aviation Fuel**: While not a primary use, certain types of asphalt can be processed for aviation fuel.
- **Waterproofing**: It is used in waterproofing membranes for buildings and structures.
- **Sealants**: Asphalt can be used in sealants for pavements to protect against weathering.

4. **Conclusion**:
- The most significant and common use of asphalt is for making road surfaces. Therefore, the correct answer to the question "Asphalt is used for /as" is **making road surface**.