Environmental Issues Question 1
Question: The thickness of ozone in a column of air in the atmosphere is measured in terms of :
(1) Dobson units
(2) Decibels
(3) Decameter
(4) Kilobase
Show Answer
Answer: (1) Dobson units
Explaination-
-
Dobson unit (DU) is used to measure the thickness of earth’s atmosphere.
-
Decibel (dB) is the unit to measure the intensity of sound.
-
A Decameter (often spelled “dekameter”) is a unit of length in the SI system of measurement (the metric system)
-
kilobase (abbreviated kb) is a unit of measurement used to help designate the length of DNA or RNA
Hence, thickness of ozone in column of air from ground to top of atmosphere is measured in terms of Dobson units.
