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Our Ozone Crisis With interactive exercises, this powerful, multi-part program develops awareness of the changes in the Earth's atmosphere, their causes and effects. Features background on ozone; video of ozone hole; CFCs; skin cancer; ultraviolet protection; predicting future ozone levels. Database of ozone levels at 150 sites allows analysis of changes on a global scale. |
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Win/Mac OZ-C480...$97 |
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