In an area of the deep ocean, hot magma emerges from a crack in Earth’s crust. Which statement describes what will happen to the seawater above the crack as a result of convection?

Magma heats the seawater near the crack. As water warms, it expands and becomes less dense than the cooler water around it, so it rises. This movement is part of convection, making D, “The water will become less dense and rise upward,” correct.

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