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Biology Ecosystem Previous Year Questions Single Correct MCQ
Published on: August 14, 2026

The thickness of the ozone in a column of air from the ground to the top of the atmosphere is measured in terms of :

A
Swedberg units
B
Monomeric units
C
Dobson units
D
Balton units

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The correct answer is:
C

The total thickness of ozone in a column of air is measured in Dobson units (DU).

It is used to measure the amount of atmospheric ozone layer.

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