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Friction is a necessary evil.comment .

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Friction is a necessary evil.comment .
  • 3 answers

Chirag Bhardwaj 7 years, 10 months ago

It is necessary for walking on the road.

Osama Malik 7 years, 10 months ago

Friction is a necessary evil as it is required to write with pens, to fire a matchstick etc.

Shubhangi Verma 7 years, 10 months ago

It is a necessary evil as it cause wear and tear but it is important for motion
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