NextMockપરીક્ષાઓ શોધો, દા.ત. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2019

UPPCS · પ્રશ્ન 59

Which one of the following is the well known example of bioindicator of air pollution?

  1. Lichens
  2. Methyl mercury
  3. Rose plant
  4. Sunflower
જવાબ બતાવો અને સમજૂતી

જવાબ: (A) Lichens

સમજૂતી

Lichens are highly sensitive to SO2 and are a well-known bioindicator of air pollution: they disappear from polluted areas.