Question

heat transfer by direct contact between objects. heat transfer through the movement of particles in a fluid. heat transfer that occurs only in solid materials. heat transfer through electromagnetic waves. which statement best defines convection?

Explanation:

Convection is the transfer of heat through the movement of particles in a fluid (liquid or gas). The first option describes conduction (direct contact), the third option is incorrect as convection occurs in fluids not just solids, and the fourth option describes radiation (electromagnetic waves).

Answer:

Heat transfer through the movement of particles in a fluid.