Physics, 22.07.2019 05:00 kim95207

How do polar bears stay warm? a) they hibernate in the winter. b) their black skin absorbs sunlight or radiant energy. c) their white fur absorbs sunlight and converts it to heat. d) they reduce their metabolic rate when food is hard to find.

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How do polar bears stay warm? a) they hibernate in the winter. b) their black skin absorbs sunlight...