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Polar Bear, Why Is Your World Melting? 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024

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Wells, Robert E./ Wells, Robert E. (ILT) 作者

譯者

2008-10 出版日期

32 頁數

51.00元價格

叢書系列

9780807565995 圖書編碼

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發表於2024-11-09

Polar Bear, Why Is Your World Melting? 在線電子書 epub 下載 mobi 下載 pdf 下載 txt 下載 2024

Polar Bear, Why Is Your World Melting? 在線電子書 epub 下載 pdf 下載 mobi 下載 txt 下載 2024

Polar Bear, Why Is Your World Melting? 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024

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Polar Bear, Why Is Your World Melting? 在線電子書著者簡介

Polar Bear, Why Is Your World Melting? 在線電子書 pdf 下載 txt下載 epub 下載 mobi 在線電子書下載

Polar Bear, Why Is Your World Melting? 在線電子書圖書描述

In the Arctic, the summer ice is melting, making it hard for polar bears and their cubs 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. If there is just the right amount of these trapped gases, the air is warm enough for plants, animals, and people to thrive. But now there is too much greenhouse gas, especially carbon dioxide. Polar bears, and all of us, are in trouble. Robert E. Wells, who lives in Washington State, shows why so much carbon dioxide is going into the air and what we can do to help keep Earth cool.

Polar Bear, Why Is Your World Melting? 在線電子書下載 mobi epub pdf txt 在線電子書下載

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