QUIZ #1 QUESTIONS FOR REVIEW CHAPTER 1 1. What historical ...

QUIZ #1 QUESTIONS FOR REVIEW CHAPTER 1 1. What historical events/changes caused the rapid expansion of our geologic knowledge? Moving continents 2. What were early geologists looking for? 3. Which geosciences specialization deals with the formation and make up of rocks? Petrologists 4. How did the earth accumulate enough heat to melt and allow differentiation to occur? Heat generated by accretion of debris and gravitational compression of the growing earth and from decay of radioactive isotopes allowed the planet to melt. The heavier materials such as nickel and iron settled toward the planets centre and lighter material towards earth’s surface. 5. Explain the internal structure of the earth Inner core, Outer core (liquid), Mantle - Asthenosphere, Crust –Oceanic crust & Continental crust 6. What are the relationships among the mantle, the crust, the athenosphere, and the lithosphere?  Movement in the mantle creates stresses in the crust  Mantle convection breaks the crust which creates lithospheric plates  Lithospheric plates are pushed around the surface of the planet over a weak layer called asthenosphere  Movement of the lithospheric plates over the mobile asthenosphere is the process involving plate tectonics 7. The largest zone of earth’s interior by volume is the a. Crust b. Mantle c. Outer core d. Inner core 8. The lithosphere is a. The same as the crust b. The layer beneath the crust c. The crust and uppermost mantle d. Only part of the mantle 9. How old is the universe, as we know it today? 4, 500 million years 10. What is the rock cycle? Explain. Page 17

CHAPTER 2 1. What was Wegener’s evidence for continental drift? 2. What is polar wandering?