Multiple choice

Which of the following is an example to prove that hot air rises upwards and cold air sinks down?

  1. The rising up of smoke when someone burns a heap of dry leaves

  2. The blowing off of the roofs in high-speed winds

  3. The taking off of a moving aeroplane on a runway

  4. The fluttering of flags in moving air

  5. The falling off of leaves in strong winds
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option. The rising up of smoke when someone burns a heap of dry leaves is an example to prove that hot air rises upwards and cold air sinks down.

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