Question

The soles of our shoes wear out gradually give reason
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Answer 1

Answer:

When the soles of shoes rub against the rough surface of road, then tiny pieces of the soles keep on breaking off slowly due to which the soles of our shoes wear out gradually. The wear and tear of the soles of our shoes ultimately causes holes in the soles. The shoes get damaged and become unfit to wear.

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Answer 2

Answer:

it helps to protect our foot