Term
| What state generates about 12% electrical power with windmills, the highest percentage in the country? |
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Term
| Mineral sorting in streams may concentrate anomalously dense minerals. This may result in which type of deposit? |
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Term
| Which three lobed fossil was the main predator in the Cambrian oceans? |
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Term
| 25% of a radioactive isotope would be present after _____ half-lives |
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Definition
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Term
| Which of the following is a fossil? |
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Definition
1.) a shell
2.)a distinctive track left by an organism
3.) the mold of a shell
4.) the cast of a shell |
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Term
| Isotopic dating of meteorites suggest that the Earth is ____ old. |
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