Q. 115.0( 3 Votes )
Mention a reason which makes the steps of foot-over-bridges at railways stations to wear out slowly.
The steps of foot over bridges at railway station gets wear out by time because when we walk the soul of our shoes gets plain and thin by time because it gets worn out and also the stairs or road also gets worn out due to friction there is rubbing between these surfaces and as a result there is worn out of both the surfaces by time but the material of shoes is softer than the stairs, so it gets worn out easily than that of stairs.
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