why friction is necessary for us? Give three points to support your answer.
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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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Answer:
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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