1. Geologic History Video Quiz 10 Questions-50 Pts

2. Question #1: The Earth is approximately_______old: A. 46 million years old B. 460 billion years old C. 4.6 billion years old D. 46 trillion years old E. none are correct…

3. Question #2: Two periods of time scientists use to measure the age of Earth are: A. Essential time B. Absolute time C. Magnetic time D. Relative time E. A and C, only F. B and D, only G. B and C, only

4. Question #3: Place in descending order from latest to earliest: A. stegosaurus, woolly mammoth, trilobite B. woolly mammoth, trilobite, stegosaurus C. trilobite, woolly mammoth, stegosaurus D. trilobite, stegosaurus, woolly mammoth E. woolly mammoth, stegosaurus, trilobite F. none of these choices are correct

5. Question #4: True or false-The layers of Earth farthest from the crust are the newest and youngest layers: A. true B. false

6. Question #5: Uranium decays into___so scientists can tell the age of the rock: A. pumice B. argon C. silver D. talc E. lead F. plutonium

7. Question #6: ‘All living things contain a radioactive isotope known as’: A. Hydrogen 11 B. Carbon 12 C. Oxygen 13 D. Carbon 14 E. Nitrogen 15

8. Question #7: Varves in lakes caused by ______are also used to determine rock age: A. Mountain ranges B. Volcanoes C. Glaciers D. Earthquakes E. None of them are correct

9. Question #8: 65 million years ago, it was assumed that a ___________destroyed 75% of life: A. a major volcano B. a huge comet like Halley’s C. the removal of O2 from the atmosphere D. a huge meteorite crash landed on Earth E. none of them seem correct

10. Question #9: True or false: sometimes fossils of plants and animals are found together: A. True B. False

11. Question #10: Put these time periods in descending order from latest to earliest: A. Precambrian, Mesozoic, Paleozoic, Cenozoic B. Mesozoic, Cenozoic, Paleozoic, Precambrian C. Paleozoic, Mesozoic, Cenozoic, Precambrian D. Cenozoic, Mesozoic, Paleozoic, Precambrian E. Precambrian, Paleozoic, Mesozoic, Cenozoic