MHT CET · BIOLOGY · STD 12 - 15. Biodiversity, Conservation and Environmental Issues
Which one of the following is measured in Dobson units (DU)?
- A Thermal pollution of water
- B Thickness of ozone in a column of air
- C Biochemical oxygen Demand
- D Biomagnification of DDT and Mercury
Answer & Solution
Correct Answer
(B) Thickness of ozone in a column of air
Step-by-step Solution
Detailed explanation
1 DU = 0.01 mm thickness of ozone if compressed at STP. It measures the thickness of ozone layer.
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