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- 1. Multiple Choice
The movement of the tectonic plates is caused by
the rotation of the Earth.
convection currents in the Asthenosphere
the gravity of the iron-nickel core.
the Moho discontinuity.
- 2. Multiple Choice
In some areas of the world, like California and Japan, earthquakes are a common occurrence. How can this best be explained?
The strong ocean currents are undermining both areas causing earthquakes.
Both areas are located near the edge of the Pacific Ocean, the unstable sand causes earthquakes.
Both areas are subjected to strong ocean wind and waves that causes earthquakes.
Both areas are on the boundary of active plates, the motion of the plates causes earthquakes.
- 3. Multiple Choice
Subduction zones occur on Earth where dense oceanic crust dives under more buoyant continental crust. These boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. All of this is further evidence for thebig bang theory.theory of plate tectonics.origin of the species.theory of natural selection. - 4. Multiple ChoiceThere are three types of plate boundaries. Which choice is NOT a type of plate boundary?convergentthrustdivergenttransform
- 5. Multiple Choice
Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that
the oceanic crust is melting.
the denser ceanic crust is subducting under the less dense oceanic crust
volcanic islands are forming.
the tectonic plates are moving away from each other.
- 6. Multiple Choice
The map in the picture shows tectonic plate boundaries. This map would be useful in predicting the location of future
droughts
hurricanes
earthquakes
tornadoes
- 7. Multiple ChoiceWhat geological forces might be responsible for this range of mountains?diverging tectonic plateserosion of the land by the oceanconverging tectonic platesdeposition of sediments by the ocean
- 8. Multiple Choice
Earthquake epicenters (center of where the earthquakes started) were mapped for a 35 year period in the diagram above. The black dots indicate these epicenters. The black dots appear along what feature on Earth?
hot spots
plate boundaries
rift zones
sea floor spreading
- 9. Multiple ChoiceThe Earth’s surface is not a solid surface but is divided intoseveral oceanic plates.continental and crustal plates.seven continental plates.continental and oceanic plates.
- 10. Multiple ChoiceGeologists have long recognized that earthquakes are not randomly distributed on Earth but occur in concentrated areas that coincide with __________ and provide evidence for the theory of ___________ .mountain ranges; fault zones.continental borders; supercontinents.plate boundaries; plate tectonicsareas of liquid magma; sea floor spreading.
- 11. Multiple ChoiceWhich geological features MOST LIKELY prompted the development of the theory of plate tectonics?river deltasmountain rangesglacier fieldstropical rainforests
- 12. Multiple Choice
Where are earthquakes MOST LIKELY to occur?
close to the equator
close to the center of tectonic plates
at divergent or convergent plate boundaries
at transform plate boundaries
- 13. Multiple Choice
The 2004 Indian Ocean tsunami was caused by a shift in two plates that pushed one section of the sea floor under another section of the sea floor by 5 meters. What type of boundary is this?
divergent
convergent
transform
metamorphic
- 14. Multiple ChoiceThe image shows the Pacific Ring of Fire, a region of high tectonic activity. What evidence supports the theory that the tectonic activity of the region is due to the subduction of tectonic plates?The region is bound by many oceanic trenches.North America seems to be colliding with Asia at the north of the ring.The Asia-Pacific region is dotted by many small and large islandsThe landmasses look like they would fit together like the pieces of a jigsaw puzzle.
- 15. Multiple ChoiceThe Atlantic Ocean gets about 3-5 ______ wider each year.centimeterskilometersmilesmeters
- 16. Multiple Choice
___________ currents in the Earth's asthenosphere cause plate to shift at their boundaries. This movement also causes earthquakes and volcanic activity.
conduction
convection
radiation
ocean
- 17. Multiple ChoiceObserve the plate boundary shown here. What type of plate boundary is this? Many geologic events occur at these boundaries. Some are shown, but one is missing. What geologic event would you predict would occur at this plate boundary?convergent oceanic-oceanic plate boundary; volcanodivergent oceanic-oceanic plate boundary; sea floor spreadingconvergent oceanic-continental plate boundary; earthquakeconvergent continental-continental plate boundary; mountain building
- 18. Multiple Choice
What is the source of energy that drives plate movement?
the subducton of the sea floor
the different densities of the oceanic and crustal plates
convection currents in the asthenosphere
the friction force between the plates that move past each other
- 19. Multiple Choice
Where would sea floor spreading most likely occur?
At convergent boundaries (oceanic vs. oceanic)
At convergent boundaries (oceanic vs. continental)
At divergent plate boundaries (oceanic vs. oceanic)
At transform plate boundaries
- 20. Multiple Choice
The Marianas Trench, where the Pacific Plate descends under the leading edge of the Eurasian Plate, is the deepest sea floor in the world. These ocean trenches form when two oceanic plates collide
and the older, less dense of the two plates rides over the edge of the older plate.
when convection currents in the mantle force the older plate downward.
and the younger, denser of the two plates, rides over the edge of the older plate.
and the plates are approximately the same age and density.
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