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In grassland ecosystem the pyramid of energy is

A. upright

B. inverted

C. upright or inverted

D. none of these

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  1. The biggest herbarium of India is
  2. When young plants are grazed too heavily they get killed because
  3. Hydrilla is a
  4. Soil particles arranged in order of increasing size are
  5. The nitrifying bacteria which oxidise nitrite to nitrates include
  6. The ultimate source of energy for fish is
  7.   Which of the following is normally not at atmospheric pollutant
  8. First link in any food chain is green plant because
  9. Autumn colouration of leaves appears only in
  10. Biologists celebrate 5th June as
  11. Commensalism is
  12. Which of the following functions performed by forests help most in controlling drought
  13. Deforestation may reduce the chances of
  14. The least porous soil among the following is
  15. Which one of the following is associated with the conservation of forest ?
  16. The best indicator of SO^2 pollution is
  17. Tropical evergreen forests are seen in
  18. A habitat of long severe winters and growing season limited to a few months of summer constitutes
  19. Competition for food, light and space is most severe in
  20. Radiation is a health hazard as it causes
  21. An area of soil is thoroughly wetted and allowed to drain until capillary movement of water is stopped.…
  22. Plankton, Nekton and Itenthon are not the components of one of the following ecosystems:
  23. Laterization is a process which results in the
  24. Mark which is true
  25. Vegetation in Delhi is predominantly
  26. In cities like Mumbai and Delhi, the major air pollutants are
  27. Correct definition of ecosystem is :
  28. The food chain in which microorganisms break down the energy-rich compounds synthesized by producers…
  29. Water plants usually have
  30. Carbon cycle includes