When a kettle is placed on the stove and water begins to boil, the hotter water at the bottom begins to rise and the cooler water above it begins to sink. What do we know about the relationship between the hotter water and the cooler water?
A. The hotter water is less dense. B. The hotter water has more radiation. C. The cooler water is less dense. D. The cooler water has more radiation.
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