Multiple choice general knowledge science & technology

What is O3 (O followed by the number 3, usually shown in sub-script)

  1. Oxygen

  2. Oxytone

  3. Oxford

  4. Ozone

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

O3 represents ozone - a molecule consisting of three oxygen atoms. It is not the same as oxygen (O2), oxytone (a linguistic term), Oxford (a city), or Oxford University. Ozone plays a crucial role in the atmosphere, both as a protective layer in the stratosphere and as a pollutant at ground level.