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What are 'flocs', formed during secondar...

What are 'flocs', formed during secondary treatment of sewage ?
OR
Write any two places where methanogens can be found.

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Verified by Experts

Flocs' are masses of bacteria associated with fungal filaments to form mesh like structures.
OR
Methanogens are micro-organisms that produces methane. They are commonly present in wetlands (marshy) areas and digestive tracts of cattles and humans.
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XII BOARDS PREVIOUS YEAR-XII BOARDS-SECTION-A
  1. Pea flowers produce assured seed sets. Give a reason.

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  2. British geneticist R.C. Punnett developed a graphical representation o...

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  3. State the two principal outcomes of the experiments conducted by Louis...

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  4. Name the layer of the atmosphere that is associated with 'good ozone'....

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  5. What are 'flocs', formed during secondary treatment of sewage ? OR ...

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  6. At what stage does the meiosis occur in an organism exhibiting haploid...

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  7. Mention two objectives of-setting up GEAC by our Government.

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  8. What are transgenic animals. Give an example.

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  9. Write the palindromic sequence that EcoRI recognises.

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  10. Trace the route of Sporozoite of Plasmodium when it enters the human b...

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  11. List any two characters of Pea plants used by Mendal in his experiment...

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  12. Name the disorder caused due to the absence of one of the X-chromosome...

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  13. Write one difference between binary fission and budding.

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  14. Mention two objectives of-setting up GEAC by our Government.

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  15. What are transgenic animals. Give an example.

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  16. Write the palindromic sequence that EcoRI recognises.

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  17. Trace the route of Sporozoite of Plasmodium when it enters the human b...

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  18. List any two characters of Pea plants used by Mendal in his experiment...

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  19. Name the disorder caused due to the absence of one of the X-chromosome...

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  20. Write one difference between binary fission and budding.

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