Multiple choice

Dobson units are used to measure the

  1. increase in nutrient concentration in unit volume of a water body

  2. intensity of noise source

  3. reduction in column ozone

  4. size of toxins accumulated in living organisms
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Dobson unit (DU) is a unit of measurement of the columnar density of a trace gas in the Earth's atmosphere. It originated and continues to be widely used as a measure of total-column ozone, which is dominated by ozone in the stratospheric ozone layer.

Keep practicing — related questions