The best indicator of SO^2 pollution is

Related Questions

1. An area of soil is thoroughly wetted and allowed to drain until capillary movement of water is stopped.…
2. Soil particles arranged in order of increasing size are
3. Plankton, Nekton and Itenthon are not the components of one of the following ecosystems:
4. When young plants are grazed too heavily they get killed because
5. Biologists celebrate 5th June as
6. Water plants usually have
7. Correct definition of ecosystem is :
8. What is the major constituent of biomass of an organism
9. A habitat of long severe winters and growing season limited to a few months of summer constitutes
10. Silent valley is situated in
11. An American plant which had become a troublesome weed in India is
12. In cities like Mumbai and Delhi, the major air pollutants are
13. Hie sequence blue green algae > crustose lichens » foliose lichens > mosses » shrubs » dicotyledonous…
14. The source of energy in the ecosystem is:
15. A pollutant is any substance, chemical or other factor that changes
16. Carbon cycle includes
17. The nitrifying bacteria which oxidise nitrite to nitrates include
18. Radiation is a health hazard as it causes
19. Biosphere is:
20. Smog is a common pollutant in places having
21. Competition for food, light and space is most severe in
22. What will happen if our water resources are continued to be polluted by industrial wastes
23.   Which of the following is normally not at atmospheric pollutant
24. In grassland ecosystem the pyramid of energy is
25. Hie earliest settlers on barren lands are generally
26. The first stage of plant succession on earth is called
27. Vegetation in Delhi is predominantly
28. The biggest herbarium of India is
29. Deforestation may reduce the chances of
30. Which one of the following is associated with the conservation of forest ?

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