Question

Define matter name the various classes into which all matter can be classified

Answer 1

any thing in our society which occupy space and have mass is known as matter
solid
liquid
gas

Answer 2

Answer:

Matter is anything that has mass and takes up space/volume.

It can be classified into four main categories:

Solids

Liquids

Gases

Plasma

There are other states of matter however those are man-made whilst the above are natural.

Hope i answered your question.