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Which of the following fixes atmospheric...

Which of the following fixes atmospheric `N_(2)` ?

A

Notice

B

Algae

C

Methanogens

D

none of these

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The correct Answer is:
A
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MODERN PUBLICATION-ECOSYSTEM -COMPETITION FILE (OBJECTIVE TYPE QUESTIONS)(A. MULTIPLE CHOICE QUESTIONS)
  1. Which of the following is a symbiotic nitrogen fixer ?

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  2. Which of the following rain forests is home to more than 10000 species...

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  3. Which of the following fixes atmospheric N(2) ?

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  4. Pyramid of energy in a ecosystem is :

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  5. Animals of colder climates generally have smaller limbs. This is calle...

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  6. The percentage of precipitation that can be stored in dame of India is...

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  7. The least porous soil among the following is a:

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  8. The final stable community in ecological succession is:

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  9. The greatest problem of water conservation is to reduce the amount of

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  10. An example of symbiotic bacterium is

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  11. In root nodules of lengumes, leg-haemoglobin is important because

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  12. In an aquatic ecosystem, the trophic level equivalent to cows in grass...

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  13. Deserts , grasslands, forests and tundra are the examples of :

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  14. Which of the following is a free-living nitrogen fixing bacterium pres...

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  15. In plant succession, when climax community is reached, the net product...

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  16. Study the four statement (i-iv) given below and select the two correct...

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  17. The biomass available for consumption by the herbivores and the decomp...

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  18. One of the free nitrogen - fixed in paddy fields is :

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  19. the common nitrogen - fixer in paddy fields is

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  20. Which one of the following is one of the characteristics of a biologic...

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