Multiple choice

The amount of atmospheric ozone is expressed in which of the following units?

  1. Ampere unit

  2. Kelvin unit

  3. Pascal unit

  4. Joule unit

  5. Dobson unit
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option. The amount of atmospheric ozone is expressed in Dobson units. The Dobson unit is the most common unit for measuring ozone concentration. One Dobson unit is the number of molecules of ozone that would be required to create a layer of pure ozone 0.01 millimeters thick at a temperature of 0 degrees Celsius and a pressure of 1 atmosphere.

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