Which of the Following Occurs When Ozone Concentration Decreases Significantly

question 23

Multiple Choice

Which of the following occurs when ozone concentration decreases significantly?

• A)more absorption of ultraviolet radiation at the Earth's surface
• B)more cases of skin cancer
• C)warming of the stratosphere
• D)more absorption of ultraviolet radiation in the stratosphere

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Definitions:

Expected Frequency

The theoretical frequency of an event or category estimated from a probability distribution or sample data.

Groups

Sets of subjects or items that are classified together based on shared characteristics or for purposes of an experiment or study.

Total N

The total number of observations, subjects, or participants included in a study or experiment.

Degrees Of Freedom

The number of independent pieces of information on which a statistical estimate is based, minus the number of parameters estimated.