NextMockपरीक्षा शोधा, उदा. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2019

UPPCS · प्रश्न 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
उत्तर दाखवा आणि स्पष्टीकरण

उत्तर: (A) Lichens

स्पष्टीकरण

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