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Is the following sentence true or false? When two surfaces rub, the irreg-ularities of one surface get caught on those of the other surface.
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Is the following sentence true or false? When two surfaces rub, the irreg-ularities of one surface get caught on those of the other surface.

User Abdullah Nehir
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1 Answer

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This is in fact true!
User Alejandro De Haro
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