1. A

2. C

3. E

4. E

5. NO CORRECT ANSWER

6. E

7. B

8. D

9. D

10. D

11. E

12. A

13. A

14. A

15. C

16. C

17. C

18. A

19. A

20. E

21. E

22. C

23. B

24. A

25. B

26. D

27. E

28. D

29. A

30. B

31. E

32. E

33. B

34. A

35. E

36. A

37. A

38. A

39. D

40. A

41. 0.76 mile

42. either shale or limestone. shale may have expansive clays, limestone subject to major dissolution

43. 2-D layers, platy, subject to shrink-swell and sliding (if oriented at angle other than normal to gravity).

44. 4.1%

45. Tertiary, Quaternary

46. ~4.6 billion years (+ or – 0.1 billion)

47. radioactive decay of unstable isotopes with long half lives

48. grain size and chemical composition (color, mineralogy)

49. because of the competing forces of weathering and erosion (driven by solar energy and gravity) and the internal heat of the earth

50. any question will be OK, as long as you answer it correctly and it isn’t repeated on this test