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OPSC OCS 2021 · Question 68 of 72

Which of the following cause is responsible for production of Radiocarbon in the atmosphere ?

General Studies

  1. AAtmosphere lightning discharge in atmosphere
  2. BAction of ultraviolet light from the Sun on atmospheric oxygen
  3. CAction of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
  4. DCollision between fast neutrons and nitrogen nuclei present in the atmosphereCorrect

Answer: D. Collision between fast neutrons and nitrogen nuclei present in the atmosphere

Explanation

Academy for Civil Services Page 50 C (14,6) is the naturally occurring radioactive isotope of carbon. It is formed in the atmosphere by the action of cosmic rays.

Source: OPSC OCS Prelims 2021 GS Paper-I; answers per Apti Plus unofficial key

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