NEET 2023
- Exam
- NEET
- Year
- 2023
- Subject
- Botany
- Chapter
- Environmental Issues
NEET 2023 · Botany · Environmental Issues
The thickness of ozone in a column of air in the atmosphere is...
The thickness of ozone in a column of air in the atmosphere is measured in terms of:
Options
- AKilobase
- BDobson units
- CDecibels
- DDecameter
Correct answer
B. Dobson units
Step-by-step solution
Most atmospheric ozone is concentrated in a layer in the stratosphere.
The Dobson Unit is a way to describe how much ozone there would be in the column if it were all squeezed into a single layer. The average amount of ozone in the atmosphere is roughly 300 Dobson Units, equivalent to a layer 3 millimetres (0.12 inches) thick.