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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 · 2026 · Paper I, General Studies · Q98 of 120

Geo-Scientist Prelims 2026 General Studies Q98: Consider the following statements :

QuestionEnvironment / Species types

Consider the following statements :

  1. Keystone species is an organism that has a disproportionately large effect on its environment relative to its abundance.
  2. Sentinel species gives us an early warning of problems that could potentially affect other species.

Which of the statements given above is/are correct?

  1. (a) I only
  2. (b) II only
  3. (c) Both I and II
  4. (d) Neither I nor II

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