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Question
How does friction help in lighting a match -stick?
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Solution
A match-stick is lighted by rubbing it along the rough surface on the sides o fa match box .If the rough surface becomes wet and smooth, the match-stick won't be lighted.
A match-stick is lighted by rubbing it along the rough surface on the sides o fa match box .If the rough surface becomes wet and smooth, the match-stick won't be lighted.
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