Question 139710 • (OC27) Earth/Space Sci-2001310-S1-Nelson
Convection transfers heat through the movement of a fluid, such as air or liquid. In a hot-air balloon, heated air moves and rises, so the air’s movement lifts the balloon (B). Warm air in a house can also rise into the attic, carrying heat with it and increasing heating bills (E). The other examples describe heating by radiation or conduction rather than convection.
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