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Why might polar bears become extinct

a.They do not have any predators
b.they may drown when the glaciers melt
c.their thick fur is not suited for a warming climate
d.too many hurt them

User Saver
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2 Answers

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b.they will drown when their glaciers melt. because withought a habitat how is anything to survive?
User Jupeter
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C.Their thick fur is not suited for a warming climate.
User BinaryMisfit
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