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- 1. Multiple Choice
One piece of evidence that supports the Theory of Plate Tectonics is found in the observation of rocks on either side of the Mid-Atlantic Ridge, shown in the picture provided. Plate Tectonic theory is supported because as you move out form the Mid-Atlantic Ridge, the rocks -
have higher iron content.
become thicker and thicker.
are increasingly older.
are made of smaller particles.
- 2. Multiple Choice
Scientists theorized that the continents were once joined together even before they had modern evidence from rocks and fossils. Using only maps, they observed that -
continents with the most temperate climates were found near the Equator.
the oceans have become smaller throughout the history of Earth.
the shapes of continents appeared to allow them to fit together.
most of the larger land masses are in the Northern Hemisphere.
- 3. Multiple Choice
The Dead Sea to the north of Africa has formed where land is thinning and sinking. This is a result of the interaction of tectonic plates. The Dead Sea -
is located in the center of a rotating plate.
sits on a boundary between plates moving apart.
formed where one plate covers another.
formed from melting due to solar radiation.
- 4. Multiple Choice
The earthquakes experienced in California are related to tectonic plates because these catastrophic events are the result of -
two tectonic plates sliding past each other.
tectonic plates melting as they slide into the mantle.
tectonic plates being weathered over time.
two tectonic plates pulling away from each other.
- 5. Multiple Choice
One piece of evidence that supports the Theory of Plate Tectonics is the discovery of what in both South America and Africa?
The ancient atmosphere in both places was identical.
The rates of weathering of rock are similar.
Fossil remains of the same land-dwelling animal.
Plants on both continents have similar flowers.
- 6. Multiple Choice
Which of the following features is likely to form where two tectonic plates push toward each other?
Ocean shoreline
Mountain range
Mid-ocean ridge
Rift valley
- 7. Multiple Choice
Every 100,000 to 200,000 years, the magnetic poles of Earth reverse. Rocks that contain iron provide a record of both normal and reversed magnetic poles. The pattern of normal and reversed magnetic poles as recorded in the rock on either side of the Mid-Atlantic Ridge provide evidence supporting the Theory of Plate Tectonics because -
the composition of the rock changed every time the plates pushed against each other.
the symmetric pattern shows where plates are moving away from each other.
deposits of iron in the rock were only made when the plates stopped moving.
" the bands of rock showing normal and reversed poles are not all the same width."
- 8. Multiple Choice
Which of the following crustal features would be the result of two continental tectonic plates moving away from each other?
Mountain range
Volcanoes on land
Rift valley
Mid-ocean ridge
- 9. Multiple Choice
A mid-ocean RIDGE is located at the boundary of two tectonic plates. Which diagram correctly models the relative plate motion on each side of a mid ocean ridge?
- 10. Multiple Choice
The San Andreas fault is a transform fault. The map below shows a student's approximation of where the fault line crosses through the United States. Students were asked to make maps predicting which way land would most likely move over thousands of years.
- 11. Multiple Choice
The image shows a plate boundary. Arrows have been added to indicate the movement of the plates.What plate boundary feature is also shown?
A ridge formed by an inactive convergent boundary
A valley forming at an active divergent boundary
A fault forming at an active transform boundary
A volcano formed by an active transform boundary
- 12. Multiple Choice
The diagram shows a model of the movement of two tectonic plates. When the plates collide, on plate often moves below the other plate. The rising magma that can result from this type of plate movement may produce-
fossil layers
volcanic islands
deep-sea sediment
seafloor spreading
- 13. Multiple Choice
This landform can occur at a divergent plate boundary.
ocean trench
mid-ocean ridge
tall mountains
transform fault
- 14. Multiple Choice
What type of plate boundary is this?
Plate
Divergent
Convergent
Transform
- 15. Multiple ChoiceThe map shows some of Earth’s plate tectonic boundaries. Based on the map, volcanic activity would most likely be found at —Location WLocation XLocation YLocation Z
- 16. Multiple Choice
The model below shows two continental plates. What type of plate boundary is this
Transform boundary
Divergent boundary
Subduction boundary
Convergent boundary
- 17. Multiple Choice
Which student correctly identified the geologic process that formed the Himalayan mountains?
1
2
3
4
- 18. Multiple ChoiceWhat type of plate boundary is this?TransformConvergentDivergentPlate
- 19. Multiple Choice
What landform would most likely form at this plate boundary? Choose 2 correct answers.
mountains
volcanoes
trenches
mid-ocean ridges
- 20. Multiple ChoiceThe area around the Pacific Ocean where lots of earthquakes and volcanoes happen is called the ____________.Ring of EarthRing of FireRing of StoneRing of Diamond
- 21. Multiple ChoiceScientists hypothesize that a super continent existed 200 million years ago. This continent is calledAmericaSuper EarthPangeaEurasia
- 22. Multiple Choice
A mid- ocean ridge separates the Pacific plate and the Nazca plate off the western coast of South America. Which statement best describes the relative motions of the Pacific and Nazca plates?
The Pacific and Nazca plates are moth moving to the east.
The Pacific and Nazca plates are both moving to the west
The Pacific plate is moving to the west, and the Nazca plate is moving to the east.
The Pacific plate is moving to the east, and the Nazca plate is moving to the west.
- 23. Multiple ChoiceWhich of the following causes Earth's tectonic plates to move?Energy from the SunMagnetic Pole ReversalConvection currents in the mantleFaults in Mountain Ranges
- 24. Multiple Choice
Younger crust being found near mid-ocean ridges supports the idea of Plate Tectonics because---
this indicates that new crust is being formed over time, pushing old crust outward.
this indicates that volcanoes are able to take place in different places on the Earth.
this indicates that new crust is never formed.
this indicates that the continents are stationary.
- 25. Multiple Choice
Which of the following is NOT evidence to support the theory of plate tectonics?
Fossils
Continental fit
Glaciers
Sand Erosion
- 26. Multiple Choice
Which of the following occurs because of convection currents?
Pressure in the crust decreases.
The mantle increases in size.
Pressure in the crust increases.
Pieces of the crust, known as tectonic plates, move.
- 27. Multiple ChoiceWhat drives tectonic plate movement?gravitycoriolis effectconvection currentsthe earth's magnetic core
- 28. Multiple Choice
Which feature will you most likely find along the plate boundaries
Delta
Valley
Volcanoes
Glaciers
- 29. Multiple Choice
magma rises to become new oceanic crust when.
two plates meet and collide
one plate grinds against another plate
two plates separate and move apart from one another
- 30. Multiple Choice
Which of these events can ONLY happen on a DIVERGENT BOUNDARY?
Rift Valley
Mountain
A peninsula
An Insanely complex, long answer that you will click out of instinct.
- 31. Multiple ChoiceWhat evidence did Wegener use in his theory?Continents and fossils fitting together/matching-up like puzzle piecesglacier scars and other climate evidence from temperaturemountain ranges and rocks line up across continentsall of the above
- 32. Multiple ChoiceWhat was missing from Alfred Wegener's Continental Drift Theory that many criticized it for?He couldn't explain why the continents movedHe didn't do a very good job writing about his ideasLand bridges connecting the continentsHe was a crazy little man
- 33. Multiple Choice
What feature is at point C?
Mid-ocean ridge
Trench
Rift valley
Seafloor spreading
- 34. Multiple Choice
What process is occuring at point B?
Mid-ocean ridge
Trench
Rift valley
Seafloor spreading
- 35. Multiple Choice
What feature is at point A?
Mid-ocean ridge
Trench
Rift valley
Seafloor spreading
- 36. Multiple Choice
What is occuring at point A?
subduction
convection
divergence
new crust formation
- 37. Multiple Choice
What type of boundary creates deep ocean trenches and volcanoes?
Convergent - oceanic and continental
Divergent - oceanic and oceanic
Transform - continental and continental
Convergent - continental and continental
- 38. Multiple Choice
A cyclical motion occurs because of density differences in the mantle. Heated, less dense lower regions of the fluid mantle rise, and denser, cooler regions sink due to gravity. The combined motions serve as the engine for crustal plate movement.
convection currents
subduction
density circles
seafloor spreading
- 39. Multiple Choice
The solid layer with plasticity in the upper mantle; tectonic plates “float” and move on this layer.
Asthenosphere
Lithospere
Mantle
Crust
- 40. Multiple Choice
Cool, rigid, outermost layer of Earth that is divided into enormous pieces called tectonic plates; consists of the crust and the rigid uppermost part of the mantle.
Lithosphere
Asthenosphere
Mantle
Atmosphere
- 41. Multiple Choice
Which type of crust is the LEAST dense?
Oceanic
Continental
They always have the same density.
- 42. Multiple Choice
Which type of crust is the MOST dense?
Oceanic
Continental
They always have the same density.
- 43. Multiple Choice
Why are there no fossils on the ocean floor that are more than 180 million years old?
Seafloor spreading and subduction
Reversal of polarity
Climate change
Oil companies drilling for petroleum
- 44. Multiple Choice
The process in which a denser plate is pushed beneath a less dense plate when the two plates converge.
subduction
polarity reversal
convection
seafloor spreading
- 45. Multiple ChoiceWhere would the oldest rock be found?LMNO
- 46. Multiple Choice
Harry Hess used magnetic reversal striping to provide evidence for which of the following theories?
Continental Drift
Seafloor Spreading
Plate Tectonics
None of the above
- 47. Multiple ChoiceWhat kind of plate boundary is shown here?divergentconvergenttransformsubducting
- 48. Multiple ChoiceThe cracks in Earth's crust are called ___________.tectonic platesfaultsmagmalava
- 49. Multiple ChoiceWhat type of boundary is shown at A?transformconvergentdivergentsubduction
- 50. Multiple ChoiceWhat is happening at point B?subductiona divergent boundaryconvectionan earthquake
- 51. 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
- 52. 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
- 53. 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.
- 54. Multiple ChoiceHow is it possible for new crust to be formed without increasing the surface area of the Earth?Crust is destroyed at the same time it is createdNew crust is underwater where it sinksNew crust breaks more easily than old crust
- 55. Multiple Choice
A convergent boundary occurs when plates experience ________ force
Compression
Tension
Shearing
Subducting
- 56. Multiple Choice
Non-volcanic earthquakes are caused by _______ forces
Compression
Shearing
Tension
Divergent
- 57. Multiple Choice
Ocean ridges are caused by _______ forces
Compression
Shearing
Tension
Divergent
- 58. Multiple Choice
A divergent boundary occurs when plates experience ________ force
Compression
Tension
Shearing
Subducting
- 59. Multiple Choice
A transform boundary occurs when plates experience ________ force
Compression
Tension
Shearing
Subducting
- 60. Multiple Choice
What causes convection currents?
Hot magma rises while cool magma sinks
The rotation of the Earth
Ocean currents pulling plates apart
The spinning of the Earth's core
- 61. Multiple ChoiceWhy was Alfred Wegner's theory of Continental Drift not immediately accepted by scientists?there was no mechanism to explain how Continental Drift happened.The theory of Continental Drift was immediately accepted by the scientific community.there was no evidence to support his theory.Scientists did not think it was possible for the Continents to move.
- 62. Multiple ChoiceWhich answer below correctly describes the formation of a volcanic island arc?Islands are created along the mid ocean ridge as new oceanic crust is formed.Islands are created one at a time as the plate moves across a hot spot in the mantle.Islands are created along a subduction zone as oceanic crust is forced back down in to the mantle.Islands are created as pressure is released when two tectonic plates are pulled apart.
- 63. Multiple ChoiceWhat kind of plate boundary occurs where two plates grind past each other without destroying or producing
lithosphere?convergenttransformdivergent - 64. Multiple ChoiceThe Himalayas in South Asia are an example of what type of plate boundary?continental-oceanic convergentcontinental-continental convergentoceanic-oceanic convergentcontinental-continental divergent
- 65. Multiple ChoiceHow does the age of the seafloor sediments change with increasing distance from the ocean ridge?age decreasesage stays the sameage increasesage varies without a pattern
- 66. Multiple ChoiceThe convergence of two continental plates would produce ___________.island arcsrift valleysfolded mountainstrenches
- 67. Multiple ChoiceWhat is the largest tectonic plate?North AmericanPacificAntarcticEurasian
- 68. Multiple ChoiceThe diagram shows what can occur when two continental plates collide.Which characteristic of the Indian Plate explains why it moves under the Eurasian Plate?It is larger.It is denser.It is molten.It is younger.
- 69. Multiple ChoiceWhich direction are the plates moving at a divergent boundary?moving away from each othermoving towards each othersliding past each otherthey don't move
- 70. Multiple ChoiceWhich direction are plates moving at a convergent boundary?away from each othergoing towards each othersliding past each otherthey don't move
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