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Nitrogen fixation is...

Nitrogen fixation is

A

Nitrogen`rarr` Ammonia

B

Nitrogen `rarr` Nitrates

C

Nitrogen `rarr` Amino acids

D

BOTH (A) AND (B)

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The correct Answer is:
D
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  1. The phenomenon of using a predator for controlling a pest is:

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  2. Crop rotation is carried out for:

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  3. Nitrogen fixation is

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  4. Leghaemoglobin occurs in:

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  5. BGA is chiefly used as fertilizer in:

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  6. Which element plays an important role in nitrogen fixation ?

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  7. The neem is used as a natural insecticide because:

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  8. Which one of the following helps in absorption of phosphorus from soil...

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  9. Secondary sewage treatment is mainly a:

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  10. Which of the following is mainly produced by the activity of anaerobic...

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  11. An organism used as a biofertilizer for raising soyabean crop is:

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  12. The most common substrate used in distilleries for the production of e...

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  13. Ethanol is commercially produced through a particular species of:

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  14. A prokaryotic autotrophic nitrogen fixing symbiont is found in:

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  15. Which one of the following is not a biofertilizer ?

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  16. Continuous addition of sugars in 'fed batch' fermentation is done to:

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  17. The 'clot buster' produced by Streptococcus and modified by genetic en...

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  18. During sewage treatment, biogases are produced which include:

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  19. A good producer of citric acid is

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  20. What gases are produced in anaerobic sludges digesters ?

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