Question

what is not a matter​

Answer 1

Answer:

Non-matter includes the light from a torch, the heat from a fire, and the sound of a police siren. You cannot hold, taste, or smell these things. They are not types of matter, but forms of energy. Everything that exists can be classed as either a type of matter or a form of energy.

Answer 2

Answer:

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A thing which doesn't have mass or don't occupy some space is not a matter.