The unit of measurement used to express the thickness of ozone layer is

Newton metre
Decibel unit
Dobson unit
Poise
Dobson unit  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 millimeters (0.12 inches) thickโ€”the height of 2 pennies stacked together

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B. not uniform
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In the body, the weight of blood is about
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The energy stored in coal is
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B. potential energy
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A human breath per minute is
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C. 15-20 times
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