Q19Short answer
Explain why the surface of mortar and pestle (silbatta) used for grinding is etched again after prolonged use?
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To increase friction to make it more effective for grinding again. 142 E XEMPLAR PROBLEMS
Explain why the surface of mortar and pestle (silbatta) used for grinding is etched again after prolonged use?
To increase friction to make it more effective for grinding again. 142 E XEMPLAR PROBLEMS