Class 11 Biology Breathing and Exchange of Gases Disorders of respiration system

Medium

What is correct for emphysema?

A
Occurs due to only bacteria infection.
B
One of the major causes is cigarette smoking.
C
People working in stone breaking industries are most affected.
D
Inflammation of bronchi and bronchioles.

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Class 11 Questions

Class 11

Biology Questions

Chapter

Breathing and Exchange of Gases

Subtopic

Disorders of respiration system

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