17. What makes the steps of foot over‐bridges at Railway stations to wear outslowly?
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Those are the degradation or the corrosion of the metals . These foot bridges are usually made of iron which corrodes in the presence of water and air. It then forms a red flaky substance called rust that literally eats the metal.
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Those are the degradation or the corrosion of the metals . These foot bridges are usually made of iron which corrodes in the presence of water and air. It then forms a red flaky substance called rust that literally eats the metal. Mark me as the brainliest plssss
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