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Competition for food, light and space is most severe in

A. closely related species growing in the same niche

B. closely related species growing in different habitats

C. distantly related species growing in same habitat

D. distantly related species growing in different habitats

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  2. Laterization is a process which results in the
  3. What is the major constituent of biomass of an organism
  4. Biologists celebrate 5th June as
  5. Deforestation may reduce the chances of
  6. Humus is an example of
  7. Correct definition of ecosystem is :
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  10. Hydrilla is a
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  15. The least porous soil among the following is
  16. Smog is a common pollutant in places having
  17. Autumn colouration of leaves appears only in
  18. In cities like Mumbai and Delhi, the major air pollutants are
  19. . Biome is
  20. The food chain in which microorganisms break down the energy-rich compounds synthesized by producers…
  21. The nitrifying bacteria which oxidise nitrite to nitrates include
  22. Carbon cycle includes
  23. Water plants usually have
  24. Which of the following functions performed by forests help most in controlling drought
  25. Soil particles arranged in order of increasing size are
  26. The biggest herbarium of India is
  27. A pollutant is any substance, chemical or other factor that changes
  28. Radiation is a health hazard as it causes
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