Final answer:
Convection is the transfer of heat through the movement of a fluid, such as air or water, creating currents that transfer heat.
Explanation:
Convection is the transfer of heat by the macroscopic movement of a fluid. This type of transfer occurs in a forced-air furnace and in weather systems, where warmer, less dense material rises and colder, denser material sinks, creating currents that transfer heat.
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