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Environmental Issues — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYEnvironmental Issues1 Mark
MCQ
Ozone in stratosphere extends:
  • A
    $10-20\ km$
  • ✓
    $20-25\ km$
  • C
    $15-30\ km$
  • D
    $25-40\ km$
✓

Answer

Correct option: B.
$20-25\ km$
The ozone layer can be traced in the stratosphere. It extends to $20-25 \ km$ away from the surface of the earth. It helps to absorb the ultraviolet radiation.

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