NextMockपरीक्षा खोजें, जैसे SSC CGL, UPPSC, लेखपाल
English
State PCS PYQPrelims 2021

UPPCS · प्रश्न 40

Which of the following is an indicator of air pollution?

  1. Puffballs
  2. Algae
  3. Lichen
  4. Moss
उत्तर देखें और व्याख्या

उत्तर: (C) Lichen

व्याख्या

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