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Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels
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Long term exposure to waves can cause sunburns and skin cancer.
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Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.
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What problems can an algal bloom cause in an ocean?...
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