Question

9. On what basis is the classification or grouping of object done ?​

Answer 1

Answer:

Objects are grouped on the basis of their shapes, the materials 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.

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Answer 2

Answer:

Objects were grouped based on similarities in colour, odour, size and shape, thus which ever objects will posses similarities in these properties will be grouped.