Multiple choice

Which of the following activities shows that air exerts pressure?

  1. Opening a soft drink bottle

  2. Burning of a candle

  3. Smoking of a cigarette

  4. Combustion of fuel
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Burning of a candle, fuel or a cigarette does not show that air exerts pressure. On the other hand, pressure exerted by air can be felt in riding a bicycle, flying a kite, rowing a boat and opening a soft drink bottle. 

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