The transfer of heat by the movement of a fluid is called

Answer:Convection

Explanation:

Convection is the heat transfer procedure by the movement of liquid or gas molecules. It is a combination of diffusion and bulk motion of molecules. Near the surface of the liquid diffusion process dominates while at certain height bulk motion of liquid dominates.

Convection can be

Natural Forced

Natural : Natural convection occurs due to density differences

Forced: Force convection occurs when we apply external heat source.