Which of the following is the best indicator of SO2 pollution.
A). bryophyte
B). pteridophyte
C). lichen
D). algae
lichen
Lichens are the best indicator of environmental pollution mainly SO2.
2. In which year did Kyoto Protocol came into force?
4. The unfavourable alteration of environment due to human activities is termed as
5. The Ozone layer is present in which atmospheric layer?
6. Which is the world's most deadliest snake?
7. The lowest temperature is usually observed:
8. The green house gases, otherwise called radioactively active gases includes
9. Acid is an example of _____________
10. The nature of relationship between condensation & evaporation is: