Ozone layer thickness is measured in

Options

A. PPM
B. PPB
C. Decibels
D. Dabson units

Answer

D

Explanation

A dobson unit is the most basic measure used in ozone research. One dobson unit is defined to be 0.01 mm thickness at STP Ozone level thickness is expressed in terms of ponson units , which measure what its physical thickness would be if compressed inthe earths atmosphere.
PPM (parts per million ) and it also can be expressed as milligrams per liter. this meaurement is the mass of a chemical or contaminate per unit volume of water.
PPB (part per billion ) measure the concentration of a contaminant in soils and sediments.
Decibels (dB) is the unit to measure the intensity of a sound.