a mail file , emery paper , a vegetable grater , and a pumic stone all have a common property - Science - Periodic Classification of Elements

Question

a mail file , emery paper , a vegetable grater , and a pumic
stone all have a common property identify the property which lost
with continous usage

Neha Thukral · Accepted Answer

A nail filer, emery paper, vegetable grater and pumice stone all
have grater amount of friction They have very rough surface but
after continuous usage the surface becomes smooth and friction
become less

a mail file , emery paper , a vegetable grater , and a pumic stone all have a common property . identify the property which lost with continous usage.