Multiple choice

Which of the following is not a property of air?

  1. Colourless

  2. Transparent

  3. Does not exert pressure

  4. Odourless
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Air does exert pressure - atmospheric pressure is about 101.325 kPa at sea level. This is why we can drink through straws, how suction cups work, and why weather systems move. The statement 'Does not exert pressure' is false, making it the correct answer to 'which is NOT a property of air'. Air IS colorless, transparent, and odourless.

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