Environmental Protection Daily Post – October 15: Reward for participation; an additional 5 rewards for answering 3 questions correctly
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Fill-in-the-blank question: In 1984, British scientists first discovered an ozone hole over (Antarctica). After several years of continuous observation, scientists have found that the ozone hole usually appears in ( ). Spring in Antarctica
In 1984, British scientists first discovered an ozone hole over (Antarctica). After several years of continuous observation, scientists have found that the ozone hole usually appears (in Antarctic spring).
In 1984, British scientists first discovered an ozone hole over (Antarctica). After several years of continuous observation, scientists have found that ozone holes typically occur in the (stratospheric ozone layer).