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- 1. Multiple ChoiceJamal makes a scale model of Earth for a school project. In his model, he uses different materials to show each layer of Earth. Which layer in his model should be the thinnest?MantleCrustOuter coreInner core
- 2. Multiple Choice
The following diagram shows a cross-section of Earth. Which letter represents the location of the asthenosphere?ABCD - 3. Multiple ChoiceThe following diagram shows a cross-section of Earth. Which letter represents the location of the asthenosphere?ABCD
- 4. Multiple ChoiceWhich of these describes the lithosphere and the asthenosphere?The lithosphere is rigid and immovable, and the asthenosphere is hot and flowing.The asthenosphere is rigid and immovable, and the lithosphere is hot and flowing.Both are hot inner layers of earth capable of bending and moving.Both are hard and rigid layers of earth close to the surface.
- 5. Multiple ChoiceWhich best describes Earth’s crust?It is stationary and unable to move.It is thicker than the mantle and the core.It is located between the outer and the inner core.It is composed of continental and oceanic plates.
- 6. Multiple ChoiceWhich best summarizes the composition of Earth's core?It contains a solid outer region surrounding a liquid iron core.It contains a liquid outer region surrounding a solid iron core.It contains a semi-liquid rock outer region surrounding a liquid core.It contains a basalt, semi-liquid outer region surrounding a solid core.
- 7. Multiple ChoiceIn which layer of Earth can a garden and rocks be found?ExosphereHydrosphereLithosphereStratosphere
- 8. Multiple ChoiceThe diagram below shows four layers of Earth's internal structure.Which layer is composed mostly of solid iron and nickel?layer Wlayer Xlayer Ylayer Z
- 9. Multiple ChoiceThe following diagram shows a cross-section of the mid-Atlantic Ridge. Which area is likely the oldest crust?1234
- 10. Multiple ChoiceWhich of the following statements best explains why the lower mantle of Earth is much more rigid and dense than the upper mantle?The lower mantle is older than the upper mantle.The lower mantle is cooler than the upper mantle.The lower mantle is under more pressure than the upper mantle.The lower mantle is farther from the core than the upper mantle.
- 11. Multiple ChoiceWhich of the following graphs best represents temperatures inside Earth?ABCD
- 12. Multiple ChoiceWhich layer of Earth is composed primarily of solid iron?1234
- 13. Multiple ChoiceWhich of the following most likely causes Earth's inner core to be a solid?The pressure at the core is very high.The metals in the core are very heavy.The temperature of the core is very low.The chemicals in the core are very reactive.
- 14. Multiple ChoiceWhich numbered arrow indicates the core of Earth?1234
- 15. Multiple ChoiceWhich layer is composed mostly of solid iron and nickel?Layer WLayer XLayer YLayer Z
- 16. Multiple ChoiceThe early development of the theory of plate tectonics was supported by which of these observations?matching fossils on the continents of Africa and South Americaglacier deposits far from existing continental glaciersthick sediment layers at the mouths of riverssudden volcanic activity of long-dormant volcanoes
- 17. Multiple ChoiceThe crust, the mantle, and the core are structures of Earth. Which description is a feature of Earth's mantle?contains fossil remainsconsists of tectonic platesis located at the center of Earthhas properties of both liquids and solids
- 18. Multiple ChoiceWhich feature will most likely form at the location marked by an X?a deserta volcanoa rift valleya transform fault
- 19. Multiple ChoiceAlfred Wegner's Theory of Continental Drift was not well accepted because he couldn't say what force could be big enough to move continents. Current theories explain this movement withsubduction zones at continental margins.hot spots forming under continents.magnetic reversals of the north and south poles.convection currents in the mantle.
- 20. Multiple ChoiceThe diagram below shows the collision of two tectonic plates in Asia. What is a result of this collision?Volcanoes erupt periodically.The Tibetan Plateau slowly sinks.The Himalayas increase in height each year.Glaciers on the Tibetan Plateau melt.
- 21. Multiple ChoiceWhich of the following best describes Earth's tectonic plates?They move away from each other at the equator.They move because of convection currents in the mantle.They collide at mid-ocean ridges.They form at subduction zones.
- 22. Multiple ChoiceWhich best describes the surface of the Earth over billions of years?A flat surface is gradually pushed up into higher and higher mountains until the Earth is covered with mountains.High mountains gradually wear down until most of the Earth is at sea levelHigh mountains gradually wear down as new mountains are continuously being formed, over and over again.High mountains and flat plains stay side by side for billions of years with little change.
- 23. Multiple ChoiceWhich feature would most likely be forming at converging continental tectonic plate boundaries?rift valleydeep trenchvolcanic coneuplifted mountain
- 24. Multiple ChoiceWhich event is best explained by tectonic plate movement?a tornadoa tsunamia hurricanea thunderstorm
- 25. Multiple ChoiceWhich of the following is most responsible for the formation of new crust at the edge of a tectonic plate?mountain building at a continent-continent convergent boundarymagma rising up from the mantle at a divergent boundarytwo tectonic plates sliding past one another at a transform boundarysubduction of one oceanic plate under another at a convergent boundary
- 26. Multiple ChoiceBased on the diagram, which process explains why less dense, hot magma rises to the surface to displace denser, cooler magma?conductiondiffusionradiationconvection
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