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Q-1 : Why are ventilators situated high up near the ceiling of a room ? Q-2 : Why does smoke rise ? Q-3 : What happens when we touch a cold metal spoon ? Why does it feel cold ? Explain |
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Answer» Q-1 : Why are ventilators situated high up near the ceiling of a room ? Q-2 : Why does smoke rise ? Q-3 : What happens when we touch a cold metal spoon ? Why does it feel cold ? Explain |
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