why we cant write properly with a chalk on a glass sheet?

The surface of glass sheet is smooth, because of the smooth surface of glass the friction becomes less . This means the interlocking of molecules is also less , because of less interlocking of molecule we are unable to write on the glass sheet.

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Because the glass surface is smooth.
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No, because glass is a smooth surface eith less friction.
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less friction
 
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less friction
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