Question

Which of these is an example of

convection?
A. A floor heating vent sends warm air
throughout a room.
B. You sit near a campfire and feel warm.
C. You burn your feet on the hot sidewalk.

Answer 1

A. A floor heating vent sends warm air throughout a room

Step-by-step explanation:

Convection can occur in liquids and gases. It is when cold air or liquid sinks towards a heat source, gets heated and then rises above. It cools when it is away from the heat source and sinks back down to be heated by the heat source again.