4th Class Science Sample Paper Science Olympiad Model Test Paper-8

  • question_answer
    When water starts boiling, bubbles are formed. Which one of the following reasons is responsible for this?

    A) These bubbles are actually dissolved gases which separate from water on heating.

    B) These bubbles are nothing just water droplets which keep on changing into gas.

    C) These bubbles are water vapours which formed due to boiling of water.

    D) All the above

    E) None of these

    Correct Answer: A


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