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SSC General Science & Technology Sample Paper NCERT Sample Paper-3

  • question_answer
    If a paste of rice or wheat flour is left overnight in the kitchen its volume increases significantly because of:

    A)  Swelling of starch particles in the flour due to absorption of water and air

    B)  The aromatic air of the kitchen

    C)  Bacterial growth

    D)  The release of carbon dioxide due to the activity of yeast

    Correct Answer: D

    Solution :

    [d] The fermentation is caused by air-born wild yeast.


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