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प्रश्न
Explain how, the air we breathe in gets cleaned while passing through the nasal passage.
टिप्पणी लिखिए
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उत्तर
The nasal passage is lined with fine hair and mucus. When air passes through the nasal passage, the dust particles and other impurities present in it are trapped by the nasal hair and mucus. Due to this, only clean air reaches the lungs.
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