Question: Rank the following fossil fuels from most to least carbon dioxide emitted, per amount of energy.

1. Coal

2. II. Natural Gas

3. III. Oil

4. Answer: I, III, II

5. Question: Which of these fossil fuels was/were formed from the remains of ancient microscopic algae and aquatic organisms?

6. a. Oil

7. b. Natural Gas

8. c. Gas Hydrates

9. d. Methane

10. e. All of the above

11. Answer: E

12. Question: Which of these fossil fuels is composed primarily of methane?

13. a. Oil

14. b. Natural Gas

15. c. Coal

16. d. Tar sands

17. e. Lignite

18. Answer: B

19. Question: Which of the following elements make up fossil fuels?

20. a. Carbon

21. b. Hydrogen

22. c. Oxygen

23. d. A and B

24. e. A, B, and C

25. Answer: D

26. Question: Which of the following are derived mostly from aquatic microrganisms?

27. A) oil B) natural gas C) coal D) A and B E) A, B, and C

28. Answer: D

29. Question: Which of the following have no carbon-carbon bonds?

30. A) oil B) natural gas C) coal D) A and B E) A, B, and C

31. Answer: B

32. Question: Which of the following descriptions is incorrect?

33. A) Oil: Clear liquid

34. B) Natural Gas: Odorless gas

35. C) Coal: Dark brittle solid

36. D) All of the above are correct.

37. E) None of the above are correct.

38. Answer: A

39. Question:

40. Answer: C

41. Question: Which of the following is divided into 4 classes, based mostly on sulfur and carbon content?

42. A) Coal D) A & B

43. B) Oil E) A, B, & C

44. C) Natural gas

45. Answer: A

46. Question:

47. Answer: A