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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 · 2025 · Paper I, General Studies · Q94 of 120

Geo-Scientist Prelims 2025 General Studies Q94: The ability of corals to make their skeletons primarily depends on…

QuestionOceanography / coral reefs

The ability of corals to make their skeletons primarily depends on which one of the following factors?

  1. (a) Temperature
  2. (b) pH
  3. (c) CO₂ concentration
  4. (d) Salt concentration

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