! Click the bottom image to open a second copy of the same movie.
This will allow you to set up monthly comparisons. For example, you may want to compare the January image with the June image by looking at them both on the screen at the same time. Use the animations to answer these questions.
1. During which months does the South Pole have the lowest concentrations of ozone? Estimate the minimum ozone level.
2. During which months does the South Pole have the highest concentrations of ozone? Estimate the maximum ozone level.
3. During which months does the North Pole have the lowest concentrations of ozone? Estimate the minimum ozone level.
4. During which months does the North Pole have the highest concentrations of ozone? Estimate the maximum ozone level.
5. Describe how ozone concentration changes over the North and South Poles through a year. Compare minimum ozone levels for each pole.
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