Give a flow chart of sewage treatment. from Biology Microbes in H
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    Microbes in Human Welfare

    Multiple Choice QuestionsShort Answer Type

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    51.

    Give a flow chart of sewage treatment.

    Flow chart of sewage treatment

    Flow chart of sewage treatment.

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    52. What is ‘Secondary treatment” of sewage ?
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    53. Differentiate primary sludge and activated sludge.
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    54. What are methanogens ? Give the examples of Methanogenic bacteria.
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    55. Where do you find methanogens ?
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    56. What are Baculo viruses ? Write significance.
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    57.

    Draw a simple diagram to show anaerobic sludge digester.

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    58. Give the full form of Bt. Name the insects killed by it.
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    Multiple Choice QuestionsOne Word Answers

    59. Name the protein produced by B. thuringiensis.
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    Multiple Choice QuestionsShort Answer Type

    60. Name five micro-organisms used as a biofertilizer..
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