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Natural Resources — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceNatural Resources1 Mark
MCQ
Oxygen is harmful for:
  • A
    Ferns.
  • ✓
    Nitrogen fixing bacteria.
  • C
    Chara.
  • D
    Mango tree.
✓

Answer

Correct option: B.
Nitrogen fixing bacteria.
Nitrogen fixing bacteria are found in anaerobic conditions, i.e., absence of oxygen.

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