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STD 11 - 14. Breathing and exchange in gases — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 14. Breathing and exchange in gases1 Mark
MCQ
What is correct for emphysema ?
  • A
    Occurs due to only bacteria infection.
  • ✓
    One of the major causes is cigarette smoking.
  • C
    Peoples working in stone breaking industries are most affected.
  • D
    Inflammation of bronchi and bronchioles.
✓

Answer

Correct option: B.
One of the major causes is cigarette smoking.
b

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