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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 · Q43 of 120

Geo-Scientist Prelims 2025 General Studies Q43: Which one of the following statements is correct?

QuestionEnvironment / ozone and UV

Which one of the following statements is correct?

  1. (a) UV-B radiations damage DNA but do not cause mutation.
  2. (b) Cornea in human eyes absorbs UV-B radiations.
  3. (c) UV radiations of wavelength greater than UV-B are completely absorbed by the Earth's atmosphere.
  4. (d) UV-B radiations may be useful to treat snow blindness.

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