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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 · Q89 of 120

Geo-Scientist Prelims 2026 General Studies Q89: Two species that possess the same ecological niche cannot coexist…

QuestionEnvironment / Ecology principles

Two species that possess the same ecological niche cannot coexist indefinitely. This is known as the

  1. competitive exclusion principle
  2. Gause's principle of competitive exclusion
  3. principle of character displacement
  4. principle of self-assembly

Which of the above is/are correct?

  1. (a) I and II
  2. (b) II and III
  3. (c) III and IV
  4. (d) I only

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