Download App

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.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q. [1 M]" from Natural Resources→Natural Resources — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Identify the action that can cause motion of a book placed on a table:
→
The ratio of the total work done or total energy consumed to the total time taken is called:
→
Which of the following is the high milk yielding variety of a cow?
→

Which one of the following is most likely not a case of uniform circular motion?

    →
    1. Falling coconut$:$ Kinetic energy
    2. Stone on tower$: …………………$
    →
    Which one of the diseases is not infectious?
    →
    Which of these is a multicellular organism?
    →
    When two bodies moves uniformly towards each her then they cross each other at the speed of $10\ m/s$. If both the bodies move in the same direction, then they cross each other at the speed of 6m/s. The speed of both bodies are:
    →
    We should not allow mosquitoes to breed in our surroundings because they
    →
    One of the following does not undergo sublimation. This one is:
    →