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| 1 | |
What is the plate tectonic theory?
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| | A) | the belief that Earth's crust and upper mantle is broken into sections |
| | B) | the belief that continents have moved slowly apart to their current locations on Earth |
| | C) | the belief that hot, less dense material is forced up through Earth's crust through mid-ocean ridges |
| | D) | the belief that Earth is broken into sections that fit together into one sphere |
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| 2 | |
What is the lithosphere?
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| | A) | the plates that make up the crust and the upper part of the mantle |
| | B) | large, flat stones sitting on top of malleable magma |
| | C) | the plates that make up the crust |
| | D) | the upper part of the mantle |
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| 3 | |
How can Earth's plates move?
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| | A) | They only can move toward each other. |
| | B) | They only converge or diverge. |
| | C) | They only collide or slide along each other. |
| | D) | They can collide, pull apart, or slide against each other. |
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| 4 | |
A divergent boundary is a boundary between two plates that __________.
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| | A) | move away from each other |
| | B) | converge |
| | C) | slide along each other |
| | D) | move toward each other |
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| 5 | |
How can crust disappear at the edge of a boundary?
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| | A) | It is too dense and is sinking into Earth. |
| | B) | because new crust is being added to the other edge of the boundary |
| | C) | Gravity is pulling it down. |
| | D) | The other edge of the boundary is being pulled into Earth's core. |
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| 6 | |
What happens to rock around a subducting slab?
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| | A) | It goes over the other plate. |
| | B) | It goes under the other plate. |
| | C) | It combines with the other rock. |
| | D) | It disappears from Earth. |
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| 7 | |
Do two colliding continental plates always cause volcanoes?
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| | A) | No, earthquakes always occur when two continental plates collide. |
| | B) | Yes, subduction always occurs when continental plates collide. |
| | C) | No, usually no subduction occurs when continental plates collide. |
| | D) | Yes, subduction always occurs when oceanic plates collide. |
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| 8 | |
What is a transform boundary?
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| | A) | A transform boundary is when two plates pull away from each other. |
| | B) | A transform boundary is when two plates move toward each other. |
| | C) | A transform boundary is when two plates collide. |
| | D) | A transform boundary is when two plates slide past one another. |
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| 9 | |
What do scientists believe is the force behind the plate tectonics theory?
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| | A) | convection currents |
| | B) | gravity slab pull |
| | C) | the movement of the planets |
| | D) | the Sun's gravity |
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| 10 | |
What does plate tectonics cause?
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| | A) | forms mountains |
| | B) | all of the above |
| | C) | forms ocean basins |
| | D) | causes volcanoes |
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| 11 | |
What is the difference between normal faults and rift valleys?
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| | A) | Rift valley formation has nothing to do with normal faults. |
| | B) | Rift valleys sometimes occur near normal faults, but their formation is not related to these faults. |
| | C) | Normal faults occur in the northern hemisphere, but rift valleys only occur in the southern hemisphere. |
| | D) | Rift valleys are formed from normal faults. |
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| 12 | |
What kind of movement created the Himalaya Mountains?
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| | A) | divergent boundaries |
| | B) | erosion |
| | C) | compressional forces |
| | D) | reversals of Earth's magnetic field |
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| 13 | |
What happens when an oceanic plate converges with a continental plate?
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| | A) | The less dense oceanic plate slides under the denser continental plate. |
| | B) | The denser oceanic plate slides under the less dense continental plate. |
| | C) | The denser oceanic plate slides on top of the less dense continental plate. |
| | D) | The less dense oceanic plate slides past the denser continental plate. |
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| 14 | |
What are strike-slip faults?
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| | A) | a boundary where rocks move in the same directions at the same rate |
| | B) | a boundary where rocks on the same side of the fault move in the same direction, but at different rates |
| | C) | a boundary where rocks in the fault never move |
| | D) | a boundary where rocks on opposite sides of the fault move in opposite or the same directions at different rates |
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