This is because on a molecular level, gases and liquids are unorganized. In solids, which do not flow, molecules are bonded together in organized, lattice structures.
because they move with a flow. liquid flow down the ground, gases flow in currents
You think probable to a current.
Because their intermolecular forces are very high relative to liquid and gas
Liquids and gases together are referred to as fluids. Fluids are substances that flow and can take the shape of their container.
Liquid
The ability to flow and take the shape of their container is a property of liquids and gases that solids do not have. This property is known as fluidity.
Because their intermolecular forces are very high relative to liquid and gas
liquid
Liquids and gases are amorphous (shapeless), viscous (can flow), and diffuse (have internal space) due to the movement of their molecules.
It is solid as it doesn't flow like a liquid or has vast space between its molecules like gases.
Liquid and gas can flow and change shape to fit their containers, while solids have a fixed shape and volume. Liquids and gases can also be easily compressed or expanded, which is difficult for solids to do.
Actually, liquid and gas are both fluids.