geo 101 - exam #1 blank study guides

geo 101 - exam #1 blank study guides - 1 Chapter one 1 The...

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Unformatted text preview: 1 Chapter one 1. The geocentric model was developed during the time of the an- cient Greeks. What is it and when did it decline? 2. What is the heliocentric model? 3. Understand the Big Bang in relation to the formation of Earth. 4. How old is the universe? Earth? 2 5. Understand the doppler effect and what it tells us about the uni- verse. 6. Know where the elements are formed 7. What are the most common elements in our solar system? Uni- verse? 8. Name the terrestrial planets. 9. Name the Jovian (gas-giant) planets. 10. What is cosmology? 11. What is a light year? What does it measure? 3 12. Our Sun is in what galaxy? 13. What is the solar wind? 14. What is differentiation and what caused it? 15. What is the alloy that makes up the core? 16. What protects the Earth from solar radiation? 17. Presently, Earth’s atmosphere is dominated by which two gases? 4 18. In the whole Earth, the 4 most common elements are: 19. By mass, the 4 most abundant elements in the Earth: 20. What is the hot, liquid rock beneath the surface of Earth? 21. The boundary between the crust and the mantle is marked by a seismic-velocity discontinuity called ____. 22. Earth’s magnetic field is generated by _________. 23. The lithosphere is composed of the _____. 5 24. Moving into the interior of the Earth, temperature ______. 25. The thickness of the crust varies from _____ 26. Of the three primary chemical layers of the Earth (crust, mantle, core), which is thickest? 27. Which of Earth’s layers has the greatest density? 28. With increasing altitude, the concentration of gases in our at- mosphere _______. 29. The two most common elements in the crust of Earth are __________________. 6 30. The lithosphere lies directly above the _______. 7 Chapter Two 1. Wegener proposed continental drift after her observed evidence from fossils, glacial deposits, and the fit of the continents → suggested that all of the continents were once ____________. 2. Wegener’s idea of continental drift was rejected by American geolo- gists because _________________________. 3. The magnetic field of Earth in the geologic past and polarity re- versals. 4. What is the tendency of the north (or south) magnetic pole to vary in position over time called? 5. Sea-floor spreading is driven by volcanic activity and occurs where? 6. Within the sea floor, where is the rate of heat flow greatest? 8 7. Regions of sea floor with positive magnetic anomalies were formed during times when Earth’s magnetic field had _________ polarity. 8. Regions of sea floor with negative magnetic anomalies were formed during times when Earth’s magnetic field had _________ polarity. 9. Marine magnetic anomaly belts run parallel to ____________....
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geo 101 - exam #1 blank study guides - 1 Chapter one 1 The...

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