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Polar Bear Why Is Your World Melting: Global Warming - Wells of Knowledge Robert Wells
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Polar Bear Why Is Your World Melting: Global Warming - Wells of Knowledge
Robert Wells
In the Arctic, the summer ice is melting, making it hard for polar bears to survive. Why is the world getting warmer? The heat of the sun is trapped by the "greenhouse" gases that surround Earth--carbon dioxide, methane, nitrous oxide, and water vapor.
32 pages
| Mediji | Grāmatas Paperback Book (Grāmata ar mīksto vāku un līmēto muguru) |
| Izlaists | 2008. gada 1. septembris |
| ISBN13 | 9780807565995 |
| Izdevēji | Albert Whitman & Company |
| Lapas | 32 |
| Izmēri | 266 × 178 × 4 mm · 113 g |
| Valoda | Angļu |
| Ieguldītājs | Robert E. Wells |
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