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Natural Resources — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceNatural Resources1 Mark
Question

In nitrogen cycle, which bacteria are responsible for nitrification:

  1. Clostridium.
  2. Rhizobium.
  3. Nitrosomonas.
  4. Nitrosomonas and Nitrobacter.
✓

Answer

  1. Nitrosomonas and Nitrobacter.

Explanation:

Nitrosomonas and Nitrobacter are bacteria that carry out nitrification.

Nitrosomonas oxidize ammonia into nitrite. Nitrobacter break down nitrite into nitrate.

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