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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 · Q87 of 120

Geo-Scientist Prelims 2025 General Studies Q87: Which one of the following is the main driver in explaining the…

QuestionPlant physiology / water transport

Which one of the following is the main driver in explaining the cohesion-tension-transpiration pull model of water transport in plants?

  1. (a) Evapotranspiration
  2. (b) Transpiration
  3. (c) Cohesion process
  4. (d) Surface tension

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