NextMockSearch exams, e.g. SSC CGL, UPPSC, Lekhpal
हिंदी
State PCS PYQPrelims 2021

UPPCS · Question 40

Which of the following is an indicator of air pollution?

  1. Puffballs
  2. Algae
  3. Lichen
  4. Moss
Show answer & explanation

Answer: (C) Lichen

Explanation

Lichens are highly sensitive to SO2 and disappear in polluted air.