Which best describes how air moves during convection?
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a. cool air warms as it mixes with denser air.
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b. warm air cools as it falls through cooler, denser air.
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c. warm air rises as cooler, denser air falls.

The answer is option C "Warm air rises as cooler, denser air falls." Convection is heat transfer between two objects for example a hot metal pot to a spoon. During convection hot air rises and cold air (or denser air) sinks.

Hope this helps.

your answer is "the 1950's"

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