Liquid and gas both are fluid , distinguish between them and which property is common between them ?

Explanation

Liquid and gas both are fluid . The basic difference between them is that luquid is incompressible . It has fixed volume and free surface . While gas is a compressible . A gas fills the entire volume of the container . Gas has no free surface.
Gas and liquid can easily flow . It is common fact and they offer very little resistance to shear stress.