Livro: Footprint Reading Library - Level 6 2200 B2 - Polar Bear in Trouble - Rob Waring

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Editora: Cengage Learning
Ano: 2008
ISBN: 9781424012312
Polar bears one of the largest and most dangerous hunters in the cold regions of the North. Their bodies are built for winter and they do best in the coldest areas. Unfortunately, polar bears are becoming threatened due to changes in the world's climate. How does global warming affect polar bears? W