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Environmental Issues — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYEnvironmental Issues1 Mark
MCQ
Lichen is indicator of
  • A
    $\mathrm{CO}_2$ pollution
  • ✓
    $\mathrm{SO}_2$ pollution
  • C
    CO pollution
  • D
    Water pollution
✓

Answer

Correct option: B.
$\mathrm{SO}_2$ pollution
B

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