What is biogas ? from Biology Microbes in Human Welfare
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    Microbes in Human Welfare

    Multiple Choice QuestionsShort Answer Type

    61. Define BOD and COD.
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    62. Do you think microbes can be used as source of energy ? If yes, how ?
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    63. Microbes can be used to lessen the burden of use of chemical pesticides. Explain how this can be accomplished.
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    64. Write a short note on natural insecticides.
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    65. What is biopesticide ? Give a few examples.
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    66. What for Nucleopolyhydro viruses are being used now a days?
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    67. What are biofertilizers ? Name two organims which fix nitrogen asymbiotically and two organisms with fix symbiotically.
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    68. Why are biofertilizers or biopesticides preferred to chemical fertilizers or pesticides ?
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    69. What is biogas ?

    Biogas is a mixture of gases (containing pedominantly methane)  produced by anaerobic breakdown or digestion of biomass by methanogenic bacteria. It is used as a fuel.
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    70.

    Why is the biogas plant usually built in the rural area?

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