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Why don’t whales and dolphins have gills? Wouldn’t it make more sense for them to have evolved gills over their hundreds of millions of years of existence? Is there any advantage not to have gills?
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Elements and combinations of elements
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Can you break up basic elements?
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What would happen if earth suddenly left the sun's orbit?
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Why don’t whales and dolphins have gills? Wouldn’t it make more sense for them to have evolved gills over their hundreds of millions of years of existence? Is there any advantage not to have gills?
1
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Elements and combinations of elements
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Can you break up basic elements?
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What would happen if earth suddenly left the sun's orbit?
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