What Is the Current Situation with the Ozone Layer

question 53

Multiple Choice

What is the current situation with the ozone layer? 

• A) The large annual decrease in ozone over the south pole is caused by spinning vortices containing clouds of ice crystals with absorbed CFCs on their surfaces. 
• B) Up to 20% of the ozone over Antarctica is destroyed each year. 
• C) The ozone hole in the Arctic is most prevalent in January. 
• D) The ozone hole is larger in the northern hemisphere than in the southern hemisphere.

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Definitions:

Correlation Coefficient

A numerical measure that indicates the strength and direction of a linear relationship between two variables.

Transforming R

The process of converting correlation coefficients to a different scale or measure to facilitate analysis or interpretation.

F-ratio

F-ratio is a statistic used in ANOVA tests to compare the variance among group means to the variance within groups, indicating whether any of the group means are significantly different from each other.

Multiple Correlation

A statistical measure that assesses the strength of the relationship between a dependent variable and two or more independent variables collectively.