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The neem is used as a natural insecticid...

The neem is used as a natural insecticide because:

A

The extract of neem contains azadirachtin which acts as an antifeedant compund

B

It is significantly most effective than other pesticides

C

It is rapidly degradable in nature

D

Its cost of production is not high

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The correct Answer is:
A
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MODERN PUBLICATION-MICROBES IN HUMAN WELFARE-EXERCISE
  1. BGA is chiefly used as fertilizer in:

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

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

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

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  5. Secondary sewage treatment is mainly a:

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

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

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

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

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

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

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

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

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

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  15. A good producer of citric acid is

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  16. What gases are produced in anaerobic sludges digesters ?

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  17. Which organisms convert milk into curd ?

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  18. Name the microorganisms that cause ripening of Roquefort cheese.

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  19. Name the mould that produces antibiotic penicillin.

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  20. Who were awarded noble prize in 1945 for penicillin discovery ?

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