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Which one of the following statements is...

Which one of the following statements is correct

A

Both Azotobacter and Rhizobium fix atmospheric nitrogen in root nodules of plants.

B

Cyanobacteria such as Anabaena and Nostoc are important mobilizers of phosphates and for plant nutrition in soil.

C

At present it is not possible to grow maize without chemical fertilizers

D

Extensive use of chemical fertilizers may lead to eutrophication of nearby water bodies.

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TRUEMAN BIOLOGY-MICROBES IN HUMAN WELFARE -Multiple choice question
  1. An enzyme that can stimulate germination of barley seeds is

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  2. the enzyme that converts glucose into alcohol is

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  3. Which one of the following statements is correct

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  4. Which one of the following pairs is wrongly matched

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  5. Probiotics are

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  6. Genetically engineered microorganism used successfully in bioremediati...

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  7. Lysozyme that is present in perspiration, saliva and tears, destroys

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  8. Which of the following enzymes is not used in making biological deterg...

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  9. Mycorrhiza is found in

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  10. Find out the pairs which are correctly matched {:(a.,"Cyanobacteria"...

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  11. Which one of the following pairs is wrongly matched?

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  12. Which of the following is not used as a biopesticide

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  13. Which of the following is a symbiotic nitrogen fixer ? 1. Frankia 2....

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  14. An example of endomycorrhiza is

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  15. Select the correct statement from the following

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  16. which one of the following is not used in organic farming

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  17. N2 fixing microbe associated with azolla in paddy field is -

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  18. In the sewage treatment, bacterial flocs are allowed to sediment in a ...

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  19. A prokaryotic autotrophic nitrogen fixing symbiont is found in

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  20. Which one of the following is not a biofertlizer

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