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  1. Pick up the correct statement from the following :
    2. A.

    Rate of digestion of slugde is more at higher temperature
    B.

    Thermophilic organisms digest the sludge if the temperature ranges from 40° to 60°C
    C.

    Mesophilic organisms digest the sludge if the temperature is between 25° and 40°C
    D.
    90% of digestion takes place in 30 days at 29°C, the optimum mesophilic temperature
    E.

    All the above.

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    Answer : Option E

    Explanation :

    No answer description available for this question.

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