friction-a necessary
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Friction is said to be a necessary evil because it is useful as well as harmful. friction helps us to walk, write, hold things, lift objects. So it is necessary in our lives. Without friction many essential processes can not be done.
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yes friction is said to be a necessary evil because it is useful as well as harmful. friction helps us to walk, write, hold things, lift objects. So it is necessary in our lives. Without friction many essential processes can not be done
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