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Indicator of SO2 pollution is (A)Algae (B)Lichen (C) Fungi (D)All of these
biology | Previous year question
Indicator of SO2 pollution is (A)Algae (B)Lichen (C) Fungi (D)All of these

Correct option:(B)

Solution:

  • Lichens are the best indicator of environmental pollution particularly SO2.
  • Lichen is an association of algae and fungi.
  • In areas of excessive SO₂ pollution, lichens cannot grow.
  • So, acting as an indicator for SO2.
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