Question

9. Transfer of heat by the movement of a liquid or a gas​

Answer 1

Answer:

gas

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Explanation:

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Answer 2

Answer:

Convection is the transfer of heat by the movement of a fluid (liquid or gas) between areas of different temperature.

Convection is the transfer of heat in a liquid or gas as groups of molecules move in currents from one region to another. Warm air is less dense than cooler air. The less dense air rises while the cooler more dense air sinks.

Explanation:

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