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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.

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Answer:

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

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.

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