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- 1. Multiple ChoiceWhich layer of the Earth is the most dense?crustmantleinner coreouter core
- 2. Multiple ChoiceWhat are the layers of the Earth from the inside out in order?inner core, outer core, mantle, crustcrust, mantle, outer core, inner coreouter core, inner core, crust, mantlemantle, inner core, crust, outer core
- 3. Multiple ChoiceThe earth is protected from solar flares and cosmic rays by its magnetic field. Where is this magnetic field generated?the outer corethe crustthe inner corethe mantle
- 4. Multiple ChoiceCompared to Earth's crust, Earth's core is believed to beless dense, cooler, and have more ironless dense, hotter, and has less ironmore dense, hotter and have more ironmore dense, cooler, and have less iron
- 5. Multiple ChoiceThe density of Earth's crust isless than the outer core but more than the mantlemore than the outer core but less than the mantleless than both the outer core and mantlemore than both the outer core and mantle
- 6. Multiple ChoiceWhich theory best explains the changing face of Earth and is driven by convection currents in the mantle?evolutionplate tectonicsbig bangrelativity
- 7. Multiple ChoiceSometime in the future, the outer core of the Earth will cool and solidify. Which of the following will be caused by this change?Earth will cool and form a new Ice Agethe Earth's magnetic field will collapsethe inner core will harden as wellthe Earth's rotation will slow
- 8. Multiple ChoiceWhile examining data at a seismic station, a scientist notices the seismograph registered a P wave from an earthquake, but no S wave was recorded. Which of the following explains the missing S wave?the earthquake occurred on the ocean floorthe station was too far away to detect itthe outer core is between the earthquake and stationthe earthquake was only strong enough to make a P wave
- 9. Multiple ChoiceWhich Earth layer is the thickest?crustmantleouter coreinner core
- 10. Multiple ChoiceWhat do geologists call the crust and upper mantle?asthenospherestratospheremesospherelithosphere
- 11. Multiple ChoiceWhat element, due to its density, sank to the middle of the Earth, creating Earth's core?magnesiumleadironsilicon
- 12. Multiple ChoiceHow do scientists know which layers of the Earth are solid and which are liquid if they can't travel deeper than a few kilometers below Earth's surface?they dig down into the earththey use specialized toolsthey use seismic wavesthey use gamma rays to determine them
- 13. Multiple ChoiceWhich layer of the Earth is responsible for Earth's magnetic field?outer coreinner coremantlecrust
- 14. Multiple ChoiceWhich seismic waves can't go through liquid?both S and P wavesjust Sjust Pneither one - both can go through
- 15. Multiple ChoiceTemperature _____________________ as you go deeper into the earth.increasesdecreasesgoes up and down depending on the layerstays the same
- 16. Multiple ChoicePressure ______________________ as you go deeper into the Earthincreasesdecreasesgoes up or down depending on the layerstays the same
- 17. Multiple ChoiceThe thinnest layer is thecrustmantleouter coreinner core
- 18. Multiple ChoiceThe layers of the Earth in order from the outside in areinner core, outer core, mantle, crustcrust, mantle, outer core, inner corecrust, mantle, inner core, outer coremantle, outer core, mantle, inner core
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