Question

on what basis do we sort object??
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Answer 1

i) Material used in making the object, e.g. wood or metal/plastic.

(ii) Material of the object is soft or hard, or substance is soluble or insoluble in water.

Answer 2

Explanation:

objects are grouped on the basis of their shapes the meterials they are made up of , and the properties like lustre , hard/softness, transparency, solubility, floatation,attraction towards the magnet , conduction of heat and conduction of electricity.