Rubber tyres are perferred to steel tyres . Why ?

Explanation

**Step-by-Step Solution:**

1. **Introduction to the Question:**
- The question asks why rubber tires are preferred over steel tires. This requires an understanding of the properties of both materials and how they affect performance in real-world scenarios.

2. **Flexibility of Rubber Tires:**
- Rubber tires are flexible. This means that when they encounter obstacles like pebbles on the road, they can deform slightly. This deformation allows the tire to adapt to the surface irregularities without losing contact with the ground.

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