Question

. Name the following


Substances that do not burn in air or oxygen​

Answer 1

Answer:

Stone , gkass , iron nails etc. do not burn in air or oxygen. These substances are known as non - combustible substances.

Explanation:

Hope it helps you

Answer 2

They are non - combustable in nature.

Like, they start burning only in high temperatures

Take the example of glass..

You can't change its shape or size that easily with just a matchstick burnt.

Hope it helps...