Choose the correct option for each question. There is only one correct response for each question.
Identify the odd one out on the basis of things used in reducing friction

Options

A. Wheels
B. Lubricants
C. Tyre treads
D. Ball bearing

Answer

To solve the question of identifying the odd one out based on things used in reducing friction, we can analyze each option provided:

1. **Wheels**: Wheels are designed to reduce friction by converting sliding or static friction into rolling friction. Rolling friction is significantly less than sliding or static friction, making wheels effective in reducing friction.

2. **Lubricants**: Lubricants are substances applied to surfaces to reduce the friction between them. They create a film that allows surfaces to slide over each other more easily, thereby decreasing friction.

3. **Tire Treads**: Tire treads are designed to increase friction between the tire and the road surface. They provide better grip and traction, especially in wet or slippery conditions. Therefore, tire treads do not reduce friction; they actually increase it.

4. **Ball Bearings**: Ball bearings are used to reduce friction between moving parts. They allow for smoother motion by minimizing the contact area between surfaces, thus reducing friction.

Now, based on the analysis:

- **Wheels**, **Lubricants**, and **Ball Bearings** are all used to reduce friction.
- **Tire Treads**, on the other hand, are used to increase friction.

Thus, the odd one out is **Tire Treads**.

### Final Answer:
The odd one out is **Tire Treads**.