In what ways is friction harmful?

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Much energy is lost in overcoming friction

Both A and B

It causes wear and tear to the surfaces

None of these

answer is C.

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Detailed Solution

Friction comes into play when two irregular surfaces come in contact. The continuous rubbing of these surfaces together causes it to gradually wear out. Also, much of the applied force or energy is wasted in overcoming the force of friction. Hence, it is considered as evil, but it is necessary too.

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