Question

what is solid why they are so called
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Answer 1

Answer:

A solid is a state of matter characterized by particles arranged such that their shape and volume are relatively stable. The constituents of a solid tend to be packed together much closer than the particles in a gas or liquid. In a solid, molecules are packed together, and it keeps its shape. Matter is the "stuff" of the universe, the atoms, molecules and ions that make up all physical substances. In a solid, these particles are packed closely together and are not free to move about within the substance.

Hope it helps :)

Answer 2

Answer:

because their particles are packed closely together and are not free to move about within a substance