Why are treads made in the surface of tyres ?

Explanation

### Step-by-Step Solution:

1. **Understanding Treads**: Treads are the patterns or grooves found on the surface of tires. They are designed specifically for enhancing the tire's performance.

2. **Purpose of Treads**: The primary purpose of these treads is to increase the friction between the tire and the road surface. Friction is essential for the vehicle's movement, as it allows the tires to grip the road effectively.

3. **Improving Grip**: The grooves in the treads help in providing a better grip on various road conditions, such as wet or slippery surfaces. This is crucial for maintaining control of the vehicle.

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