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The top documents tagged [decayed vegetable matter]
Energy Sources Chapter 9. Using Energy Where does our energy come from? How do we obtain our energy? What types of energy are available?
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Major Ice Age Periods Fluctuating cool periods on Earth which lasted for millions of years 2100-2400MM years ago “Huronian” 800-600MM years ago “Snowball
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COPPER TRAIL Fred Rydholm Script and Photo selection by Larry Stroud Ancient America Preservation Society OCTOBER 24, 2008
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Fjord Long steep-sided glacial valley now filled by seawater
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