EAR 105 Chapter 2 Quiz Notes PDF

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EAR 105 chapter 2 quiz questions and answers...

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EAR 105 Chapter 2 quiz 1. Identify the FALSE statement: Meteoroids that explode into fireballs are termed bolides 2. The two most common gases of Earths atmosphere and their percentages are: Nitrogen (78%) and oxygen (21%) 3. Which of the following is caused by the interaction of the solar wind with magnetic lines of force and gases in polar regions? The aurorae 4. Which of the following serve as a trap for cosmic rays and shield life on Earth from excessive radiation? Van Allens Belt 5. Studies of interplanetary space have indicated that Interplanetary space is much denser than interstellar space 6. Identify the true statement: Sedimentary rocks form when preexisting rock grains are cemented together 7. Which of the following would you consult to predict the effect of sea level changes of the amount of exposed land areas? Hypsometric curve 8. Choose the list that accurately shows rock composition decreasing in silica and increasing an iron and magnesium Granite, basalt and peridotite 9. Identify the FALSE statement: the categories of materials that constitute earth include: organic chemicals: all carbon-containing compounds including oil, protein carbon dioxide and calcium carbonate. 10. Which of the following groups of elements make up the most mass of the whole earth? Iron, oxygen, silicon, and magnesium 11. The appropriate definition of a rock is: an aggregate (mixture) of minerals 12. the geothermal gradient refers to the rate of change in temperature with depth in the earth 13. Which of the following statements is FALSE? Peridotite is: felsic 14. which of the following methods of heat transfer occurs when an increase in temperature creates a decrease in density, causing the warm, less dense material to rise as shown in this diagram? Convection 15. Earthquakes are generated: when rock moves along faults.

16. Which of the following statements concerning density is false? The density of crustal rock is between 5 and 7.9 g/cm 17. Boundaries between Earth’s layers: are places where there is an abrupt change in the density of rock 18. Use the graph below to describe the relationship between air pressure and altitude 19. Which of earth’s layers accounts for most of the volume of earth? The mantle 20. Which of the following statements about the crust is false? The crust is the top of the mantle that has cooled and hardened 21. Earths magnetic field is generated in the outer core 22. Identify the FALSE statement the calculated density at Earth’s center makes scientists almost certain the inner core is composed of gold...