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- 1. Multiple Choice
The four layers that make-up the earth’s composition areCrust, Lithosphere, Mesosphere and CoreLithosphere, Asthenosphere, Mantle and CoreCrust, Mantle, Outer Core and Inner CoreMantle, Outer Core, Lithosphere and Crust - 2. Multiple ChoiceThe plastic, semisolid layer that contains a convection current that moves the plates is calledMantleInner CoreOuter CoreCrust
- 3. Multiple ChoiceLarge pieces of lithosphere that move around on the asthenosphere are calledCrust platesTectonic platesMantle piecesCore plates
- 4. Multiple ChoiceThe hypothesis that land masses spread apart from each other and have done so in the past is known asDivergent Plate BoundaryTensionUpliftContinental drift
- 5. Multiple ChoiceWhere does sea-floor spreading take place?Convergent BoundariesTransform BoundariesLand BoundariesMid-Oceanic Ridges
- 6. Multiple ChoiceThe core is made-up of what two elements?iron and nickeliron and oxygennickel and siliconoxygen and silicon
- 7. Multiple ChoiceWhat is the thinnest layer of the earth’s composition?mantleinner corecrustouter core
- 8. Multiple ChoiceThe thickest layer of the earth is thecrustmantleinner coreouter core
- 9. Multiple ChoiceWhen the Crust sinks down into the Mantle what happens to it?It becomes a tectonic plateIt slowly floats upIt sinks to the inner coreIt Melts
- 10. Multiple ChoiceThe order of the earth’s compositional layers from most dense to least dense areInner Core, Crust, Mantle and Outer CoreCrust, Mantle, Outer Core and Inner CoreInner Core, Outer Core, Mantle and CrustCrust, Outer Core, Inner Core and Mantle.
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