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Which of the following is the best description of convection?

A.
heat transfer in a gas or liquid by the circulation of currents from one region to another

B.
the emission of energy in the form of rays or waves that are able to travel through empty space

C.
the process of changing from a gas to a liquid or from a liquid to a gas

D.
the transmission of heat through a medium without the motion of the medium

User Moo
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2 Answers

2 votes
A I think

Hope it helped
User Golly
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Convection- heat transfer in a gas or liquid by the circulation of currents from one region to another; A
User Brian Anderson
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