Many ecosystems are in danger. When animals start dying in a certain ecosystem, the food chain is altered and more animals die. Things like pollution can also cause problems. To understand why a certain part of an ecosystem's population is dying, you have to collect data. When you collect data, you can make predictions and turn your predictions into solutions.
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ISBN | 9780743909075 |
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Sprache | eng |
Cover | Kartonierter Einband (Kt) |
Verlag | Teacher Created Materials |
Jahr | 200810 |
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