Question

Which materials are said to be hard ? Please give me short answer

Answer 1

Hard: Material which are difficult to compress are called hard, e.g. diamond, stone, wood, steel, etc. Diamond is the hardest natural substance. Soft: Materials which can be compressed easily are called soft, e.g. chalk, cotton, rubber, etc.

Answer 2

$\huge\sf{Answer:-}$

Material which are difficult to compress are called hard, e.g. diamond, stone, wood, steel, etc. Diamond is the hardest natural substance