Question

why do we need to group materials​

Answer 1

Answer:

Dividing materials into groups makes it easy to study their properties. It also helps to observe any pattern in these properties. For example: by placing similar types of objects together, we can locate them easily.

Explanation:

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Answer 2

We need to group materials for following :-

• To make our work easy
• To save time
• To save energy
• To study their properties

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