a pencil will write on paper but not on glass witch friction
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Answer:
because pencil has lead which can write wereas glass is made of sand so it cant write
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a)a pencil writes on a piece of paper but not on glass:
a)a pencil writes on a piece of paper but not on glass:Friction between the pencil graphite and the paper removes bits of the graphite which leaves a mark on the paper. Glass surface is smooth and hence friction is less and writing is not possible.
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