Question

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Which describes the movement of a fluid during convection?

Warm and cool fluids rise.
Warm and cool fluids sink.
Warm fluid rises and cool fluid sinks.
Warm fluid sinks and cool fluid rises.

Answer 1

Warm fluid rises and cool fluid sinks.

Explanation: heating makes fluid expand and become less dense, so it rises; cooler fluid is denser and sinks, creating convection currents.