Polar bears are becoming ¹ __., Why? Human ² __ is changing the ³ __, Polar bears ⁴ __ on the ice in the Arctic., But the ice is melting and their ⁵ __ is getting smaller., Every year it gets more difficult for the bears to ⁶ __ seals, Polar bears can ⁷ ___ but they can’t live in the sea!

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