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Which of the following is a non-symbioti...

Which of the following is a non-symbiotic biofertiliser ?

A

VAM

B

Azotobacter

C

Anabaena

D

Rhizobium

Text Solution

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The correct Answer is:
B
Bacteria, such as Azotobacter is free living and can fix atmospheric nitrogen in the soil, thus enriching nitrogen content of the soil.
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NCERT FINGERTIPS-MICROBES IN HUMAN WELFARE-Microbes In Human Welfare
  1. Which of the following statements is/are correct ?

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  2. Which of the following options includes biofertilisers ?

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  3. Which of the following is a non-symbiotic biofertiliser ?

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  4. Nitrogen fixation in root nodules of Alnus is brought about by

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  5. Farmers have reported over 50% higher yields of rice by using which of...

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  6. Match column I with column II and select the correct answer from the g...

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  7. Which of the followig statements is/are incorrect ? (i) Cyanobacteri...

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  8. Match column I with column II and select the correct answer from the g...

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  9. Which of the following curves correctly represents the process of anti...

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  10. In a microbiology laboratory, the technician uses heat to sterilise th...

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  11. Study the given differences between primary sludge and activated sludg...

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  12. Microbe used for biocontrol of pest bufferfly caterpillars is

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  13. In batch fermentation

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  14. The vitamin whos content increases following the conversion of milk in...

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  15. Wastewater treatment generates a large quantity of sludge, which can b...

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  16. Methanogenic bacteria are not found in

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  17. Match the following list of bacteria and their commercially important ...

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  18. Match the following list of bioactive substances and their roles. {:...

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  19. The primary treatement of wastewater involves the removal of

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  20. BOD of wastwater is estimated by measuring the amount of

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