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Overview
How do hot-air balloons float? What is air made of? How is water power used? How does pollution affect our air and water supply? This book answers these questions and many more.
| ISBN-13 | 9780613903561 |
|---|---|
| ISBN-10 | 0613903560 |
| List Price | $16.40 |
| Format | - |
|---|---|
| Publisher | Sagebrush Education Resources |
| Published On | 2002-04-01 |
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