Twenty Questions Subject: Atmosphere Twenty Questions 12345 678910 1112131415 1617181920.
Twenty Questions
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Transcript of Twenty Questions
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Twenty Questions
Earth’s Structure and Geologic Time
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Twenty Questions
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1. What is the opening in the Earth from which magma and gas erupt?
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2. What is the idea that continents are slowly moving towards and away from each other?
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3. Who first presented the evidence for the movement of the continents?
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4. What decides the cut off for each geological time unit?
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5. What is the outer most layer of the Earth called?
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6. What two layers of the Earth make up the lithosphere?
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7. Molten rock, that has erupted onto the Earth’s surface is called __.
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8. What is the inner most layer of the Earth called?
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9. What type of rock is formed from very explosive volcanoes?
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10. What is the layer between the crust and the core of the Earth called?
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11. This type of magma creates a less explosive volcanic eruption.
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12. A volcano that hasn’t erupted in a very long time, but could erupt again is called a ____ volcano.
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13. What two layers are responsible for the Earth’s magnetic field?
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14. Which geologic time is greater, eon or era?
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15. Which geologic time is greater, era or period?
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16. Give an example of evidence for continental drift.
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17. Give an example for evidence supporting continental drift.
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18. Is the crust of the Earth solid, liquid, or both?
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19. Is the inner core solid, liquid, or both?
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20. Is the mantle solid, liquid, or both?