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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper I covers general studies.

UPSC Combined Geo-Scientist, Prelims · 2023 · Paper I, General Studies · Q85 of 120

Geo-Scientist Prelims 2023 General Studies Q85: Duckweed or Azolla is used as a/an

QuestionAgriculture / biofertilizers

Duckweed or Azolla is used as a/an

  1. (a) pesticide
  2. (b) biofertilizer
  3. (c) arsenic indicator
  4. (d) antiseptic

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