Reduction in thickness of Ozone in Ionosphere
Incorrect AnswerReduction in thickness of ozone layer in stratosphere
Correct AnswerReduction in thickness of ozone in troposphere
Incorrect AnswerIncreased concentration of ozone in stratosphere
Incorrect AnswerExplanation:
The ozone layer resides in the stratosphere and surrounds the entire Earth.
The ozone "hole" is really a reduction in concentrations of ozone high above the earth in the stratosphere. The ozone hole is defined geographically as the area wherein the total ozone amount is less than 220 Dobson Units. The ozone hole has steadily grown in size and length of existence over the past two decades.
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By: Abhipedia