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Rooms are fitted with ventilators to let hot air out . What is the phenomenon involved in the above

    • Posted by Mahi Goswami 7 years, 8 months ago

    CBSE > Class 07 > Science
    • 1 answers

    S N 7 years, 8 months ago

    Hot air is lighter than cold air.

    1Thank You

    ANSWER
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