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HPSC HCS 2017 · Question 20 of 100

What kind of micro-organisms are there in nitrogen fixing bacteria?

Science & Tech

  1. ARhizobium
  2. BProcaryoticCorrect
  3. CAzotobacter
  4. DCyanobacteria

Answer: B. Procaryotic

Explanation

Nitrogen-fixing bacteria are prokaryotic micro-organisms; Rhizobium, Azotobacter and cyanobacteria are examples of such prokaryotes.

Source: Question text: HPSC HCS (Ex.Br.) Prelims GS Paper-I held 31-Mar-2019 (Drishti IAS official-paper transcription; cross-checked with Abhimanu IAS Set-D solved paper). Answers: official HPSC Series-D answer key.

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