Question

1. how is a solid different from a gas?

Explanation:

Solids have definite shape and volume. Particles are closely packed. Gases have no definite shape or volume. Particles are far apart and move freely.

Answer:

A solid has a definite shape and volume. Its particles are closely packed and vibrate in fixed positions. A gas has no definite shape or volume. Its particles are far apart and move freely in all directions.