Respiratory Disorders: Part 2 Breathing and Exchange of Gases - Essentiale - (New NCERT) Breathing and Exchange of Gases Masterclass in Biology NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

A condition in which a person's airways become inflamed, narrow, swell and produce extra mucus, which makes it difficult to breathe is known as

1.	Asthma
2.	Emphysema
3.	Chronic bronchitis
4.	Chronic obstructive pulmonary disease

Subtopic: Respiratory Disorders: Part 1 | Respiratory Disorders: Part 2 |

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