A student sets up an experiment to show how convection affects ocean currents. The student fills a glass tray with water, places the arrangement on a stand until the water is still, and lights a candle below the center of the tray. Using an eye dropper, the student adds three drops of food coloring at positions X and Y, as shown in the image.
The student observes that the drops of food coloring at position X rise upward and disperse toward position Y, while at position Y, they sink to the bottom of the glass tray and move toward position X. Which statement correctly relates the student’s observations with convection affecting ocean currents?
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