NextMockપરીક્ષાઓ શોધો, દા.ત. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2021

UPPCS · પ્રશ્ન 40

Which of the following is an indicator of air pollution?

  1. Puffballs
  2. Algae
  3. Lichen
  4. Moss
જવાબ બતાવો અને સમજૂતી

જવાબ: (C) Lichen

સમજૂતી

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