Chapter1_10 copy - Chapter 1 Name Date 1 A B C D 2 A B C D...

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Chapter 1 Name: __________________________ Date: _____________ 1. This element is abundant in meteorites. A) osmium B) palladium C) platinum D) iridium 2. The terrestrial planets are ____. 3. Which of the following is not one of the outer Jovian planets? 4. The geothermal gradient is normally in the range of ___ C/km. 5. The inner planets of our solar system are dense and rocky due to the fact that ____. A) the inner planets were the first to accrete from the nebula cloud B) lighter gases were swept away by the solar wind C) the inner planets were larger and had greater gravitational fields D) the central sector of the nebula disc was at a lower ambient temperature 6. Planets that are characterized by thick atmospheres of hydrogen and helium, are called _____. Page 1
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7. The mass extinction of the dinosaurs is evidence for the hypothesis of ____. 8. Geologists investigate the environment using a general research strategy known as ____. 9. The density of Saturn is: A) ~0.7 g/cm 3 B) ~7 g/cm 3 C) ~17 g/cm 3 D) ~1.7 g/cm 3 10. Geology could be best defined as the study of _____. 11. Which of the planets is composed mostly of hydrogen and helium? 12. The terrestrial planets have densities of ____ or more. Page 2
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13. The internal source of energy that drives our dynamic Earth comes mainly from ____. A) earthquakes in the mantle B) decay of radioactive isotopes C) gravitational collapse of the core D) magmas at depth in the asthenosphere 14. A system could be defined as ____. 15. The outer, lower density planets in our solar system are ____.
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