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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 · Q52 of 120

Geo-Scientist Prelims 2026 General Studies Q52: Which of the following statements about the process of respiration…

QuestionBiology / Breathing

Which of the following statements about the process of respiration is/are correct?

  1. During inspiration, the diaphragm gets relaxed.
  2. During expiration, external inter-costal muscles contract.
  3. A healthy human adult breathes 12–16 times per minute at rest.

Select the answer using the code given below.

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

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