How is the thickness of the ozone in a column of air from the ground to the top of the atmosphere measured?(a) Dobson units(b) Hertz(c) Centimeter(d) AmpereI have been asked this question during an interview.My question is from Environmental Issues in chapter Environmental Issues of Biology – Class 12

How is the thickness of the ozone in a column of air from the ground t

1.	How is the thickness of the ozone in a column of air from the ground to the top of the atmosphere measured?(a) Dobson units(b) Hertz(c) Centimeter(d) AmpereI have been asked this question during an interview.My question is from Environmental Issues in chapter Environmental Issues of Biology – Class 12
Answer» Right option is (a) DOBSON units Explanation: Dobson unit (DU) is USED to measure the THICKNESS of the ozone in a COLUMN of air from the ground to the TOP of the atmosphere. A layer of pure ozone that is 0.01 mm thick at standard temperature and pressure is equivalent to one Dobson unit.

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