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Which one of the following is the mode of heat transfer in which warm material is transported so as to displace a cooler material?

Which one of the following is the mode of heat transfer in which warm material is transported so as to displace a cooler material?

Q. Which one of the following is the mode of heat transfer in which warm material is transported so as to displace a cooler material?

A.            Conduction only

B.            Convection only

C.            Radiation

D.            Both conduction and convection

Answer: Convection only

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