Why do solids have a definite volume?

On the basis of kinetic theory of matter explain : Why the solids have a definite volume and definite shape?

Answer the following question in one sentence : Why dose a solid have definite volume ?

Why do solids have a definite shape and volume but not gases?

Why solids have definite mass, volume and shape ?

Why solids have definite mass, volume and shape?

Why liquids have a definite volume but no definite shape?

Why liquids have a definite volume but no definite shape?

Why liquids have a definite volume but no definite shape?