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प्रश्न
Explain, why are the exposed water pipes lagged with straw during severe winter?
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उत्तर
Water freezes at sub-zero temperature and in doing so expands (anomalous behaviour of water). So exposed water pipes during severe winter are lagged with a straw so as to provide sufficient space for the expansion of freezing water.
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संबंधित प्रश्न
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