Biology

8th

grade

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Biology Worksheet-02

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5 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    the presence of large number of microorganisms in the food is called

    food preservation

    food poisoning

    nitrogen fixation

    none

  • 2. Multiple Choice
    30 seconds
    1 pt

    heating of milk up to 70°C and cooling immediately to low temperature is called as

    pasteurization

    fermentation

    dehydration

  • 3. Multiple Choice
    30 seconds
    1 pt

    two most common examples of bacteria causing food poisoning are

    salmonella

    clostridium botulinum

    both 1 and 2

    none of these

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