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secondary 2 | Maths
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I need help with these two questions
Q6(b): By convection, once the water at the bottom is heated up by the heating element, it will rise and cold water at the top will sink. Eventually, all parts of water will be hot.
Q7: Freezers are always on top of a fridge due to the nature of convection. Warm air rises while cold air sinks, so the freezer at the top provides cold air for the other compartments at the bottom of the refrigerator.
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