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Life Processes — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceLife Processes1 Mark
Question
Explain how, the air we breathe in gets cleaned while passing through the nasal passage.
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Answer

When air passes through the nasal passage, the dust particles and other impurities present in it are trapped by nasal hair and mucus so that clean air goes into the lungs.

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