Chemistry, asked by nilufarkhan385, 4 months ago

.. Hot air balloon rises up in the air because:
(a) hot air is heavier than cold air.
(b) hot air is lighter than cold air.
(C) hot air does not play any role in rising up of the balloon.
(d) hot air contains water vapours which push up the balloon.​

Answers

Answered by parveshkumar270762
1

Answer:

b) hot air is lighter than cold air.

Explanation:

hope it helps!!

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