3. At higher altitudes, people suffer from breathing problems. Why give reason?
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At higher altitudes, the partial pressure of oxygen is less than that at ground level, so that oxygen concentration becomes less in blood or tissues. Hence, people suffer from anoxia.
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because pressure decreases and the gas(oxygen air) becomes dense and sinks down. due to absence of O2 has people suffer from breathing problems and he should carry Oxygen cylinders with him.
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