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In the sewage treatement, bacterial floc...

In the sewage treatement, bacterial flocs are allowed to sediment iin a settling tank. This sediment is calld as

A

Primary sludge

B

Activated sludge

C

Effluent

D

Grit

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TRUEMAN BIOLOGY-MICROBES IN HUMAN WELFARE -Multiple choice question
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  2. The common nitrogen-fixer in paddy fields is

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  3. In the sewage treatement, bacterial flocs are allowed to sediment iin ...

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  4. A prokaryotic autotrophic nitrogen fixing symbiont is found in

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  5. Which one of the following is not a biofertlizer

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  6. Secondary sewage treatment is mainly a

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

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  8. Ethanol is commercially produced through a particular species of:-

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  9. which one of the following helps in asbsorption of phosphorus ...

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  10. Which one of the following is a wrong matching of a microbe and its in...

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  11. Cyclosporine-A is an immunosuppressive agent produced by the fungus

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  12. A Bioactive molecule, Cyclosporin-A used as an immuno-suppressive agen...

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  13. The scientific name of Baker's yeast is

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  14. The majority of Baculo viruses are used as biological control agents b...

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  15. The large holes in 'Swiss cheese' are because of

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  16. Blood cholesterol lowering statins are obtained from

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  17. Which organic compound is produced by fer- mentation and is used to re...

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  18. Which one of the following is a wrong matching of a microbe and its in...

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  19. Yeast is used in the production of

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  20. Which one of the following is an example of carrying out biological co...

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