Is glass liquid or solid? Give reason for the answer.

Glass is a solid.  There are certain characteristics of
the 3 stages of matter (solid, liquid, gas).  A solid has a fixed volume and shape.  The
particles of a solid vibrate.  They do not move past one another as they do in a liquid
or a gas.

Refer to the link below for more information on
solids, liquids, and gases.  It breaks down the characteristics of each and includes
visual examples of how the particles move in each.