Sedimentary rocks are the only rocks that can

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21. Sedimentary rocks are the only rocks that can potentially contain a. fossils. b. minerals. c. fractures. d. faults. 22. Igneous rocks that have mineral crystals easily seen with the unaided eye formed
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23. The rock labeled “B” is 24. The rock labeled “A” is 25. Weathering that does not alter the chemical composition of the rock is called a. chemical weathering. b. physical weathering. c. biological weathering. d. acid weathering. 26. The process in which sediment is laid down is called 27. Which of the following valley shapes would glaciers produce? 28. Rain is naturally
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29. Using your knowledge of temperature and pressure, explain why the inner core of Earth is solid. 30. What did Alfred Wegner theorize? Briefly describe the theory. 31. What do scientists call the theory that describes the motion of the plate? Briefly describe the reason for the motion. 32. What is subduction and at which type of plate boundary does it occur? Explain what could happen if this pressure were released under the water. 33. What is one cause of earthquakes? 34. Describe and explain in detail the differences between the Pangaea Theory and the Theory explained in class.
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