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- 1. Multiple Choice
What is this a picture of?plate tectonicscontinental driftpangeaglacier scaring - 2. Multiple ChoiceThe Theory of Continental Drift states that Pangaea broke apart and the continents "drifted" away from each otherTrueFalse
- 3. Multiple ChoiceWhat does the theory of continental drift state?The continents were once joined in a super-continent and have moved over timeContinents are stationary and do not moveThe Earth is broken into lithospheric plates that move due to convection currentsnone of the above
- 4. Multiple ChoiceName the boundaryconvergent boundarydivergent boundarytransform boundarysergent boundary
- 5. Multiple ChoiceName the boundaryconvergent boundarydivergent boundarytransform boundarysergent boundary
- 6. Multiple ChoiceA collision between two pieces of continental crust at a converging boundary produces amid ocean ridgedeep ocean trenchrift valleymountain range
- 7. Multiple Choice
An underwater mountain chain caused by a divergent boundary, where new ocean floor is formed.
mid ocean ridge
volcano
rift valley
trench
- 8. Multiple ChoiceA collision between a continental crust and an oceanic crust at a converging boundary produces amid ocean ridgedeep ocean trenchrift valleymountain range
- 9. Multiple ChoiceWhat are the two types of crustcontinental and oceanicocean and upperlower and upperpizza and subway
- 10. Multiple ChoiceWhich layer has convection currents?Inner CoreOuter CoreMantleCrust
- 11. Multiple Choice
Subduction zones in the ocean can create which features?
islands
volcanoes
earthquakes
all of the above
- 12. Multiple ChoiceEarthquakes and volcanoes are most likely found in which locations?At plate boundariesin oceansin the middle of continentsin the middle of plates
- 13. Multiple ChoiceWhich of the following is NOT a tectonic boundary?ConvergentDivergentSedergentTransform
- 14. Multiple ChoiceThe area where two tectonic plates meet.mantlefocusplate boundaryconvection
- 15. Multiple ChoiceScientists think that convection currents that move the plates flow in Earth'sContinental crustOceanic crustAsthenosphereLithosphere
- 16. Multiple Choice
What is a Subduction zone?
When an oceanic plate moves under a continental plate
When two plates slide by each other
When two plates move away from each other.
When a continental plate moves under an oceanic plate.
- 17. Multiple ChoiceNew crust forms atdivergent plate boundariesconvergent plate boundariestransform fault boundariesall of the above
- 18. Multiple ChoiceWhat is the process that is thought to move the tectonic plates?Earth's rotationtidal forces from the Sun and Moonconvection currentsmagnetic anomalies
- 19. Multiple ChoiceWhat type of plate boundary is this?TransformConvergentDivergentPlate
- 20. Multiple ChoiceWhat type of plate boundary is this?PlateDivergentConvergentTransform
- 21. Multiple Choice
What two words are BEST used to describe how the seafloor spreads?
Magma and convection
Earthquakes and convection
Volcanoes and convention
Volcanoes and earthquakes
- 22. Multiple ChoiceThe mantle convection pictured here happens at a ______________ plate boundary.TransformDivergentConvergent
- 23. Multiple Choice
Lithosphere
Layer where oceanic and continental crusts are found
Layer where magma is found
Layer where very hot rock rises and falls
- 24. Multiple Choice
Wegener used the following evidence to prove his theory of continental drift?
The shape of the continents
Similar fossils found on separate continents
Rocks found on separate continents
All of the above
- 25. Multiple Choice
Oceanic crust subducts under continental crusts because
Oceanic crust is less dense
Oceanic crust is more dense
Continental crust is more dense
Oceanic crust and continental crust is the same
- 26. Multiple Choice
The mantle convection pictured here happens at a ______________ plate boundary.
Convergent
Divergent
Transform
- 27. Multiple ChoiceWhen looking at mid ocean ridges the oldest rocks areIn the middleFound close to the rift zoneFound far from the mid ocean ridges
- 28. Multiple ChoiceProcess by which new ocean lithosphere forms.Seafloor spreadingContinental driftMid-ocean ridgeRift
- 29. Multiple Choice
The YOUNGEST seafloor is located?
Closest to the mid-ocean ridge
Farthest from the mid-ocean ridge
- 30. Multiple ChoiceTrue or False : Sea-floor Spreading adds new material to the ocean floor?TrueFalse
- 31. Multiple ChoiceWhich of the following is NOT a cause of an earthquake?Collapse of CavernEruption of VolcanoLightning StrikesMoving Tectonic Plates
- 32. Multiple Choice
What did one earthquake say to the other earthquake?
"Sup Bro"
Nothing earthquakes don't talk
"Hello"
"It's all your fault!"
- 33. Multiple Choice
What do scientists believe is the force behind the plate tectonics theory? (Scientists believe that differences in density cause hot, plastic like rock to be forced upward toward the surface.)
the Sun's gravity
the movement of the planets
gravity slab pull
convection currents
- 34. Multiple Choice
How do scientists explain the formation of underwater mountain ranges? (Hot, less dense magma is forced upward and through the seafloor to form these ridges.)
strike-slip faults
seafloor spreading
continental drift
convection currents
- 35. Multiple Choice
How did scientists use the magnetic polarity of the Earth's crust to prove the theory of seafloor spreading? (Rocks in Earth's crust show permanent evidence of Earth's polarity at a given time.)
They were able to reverse the polarity of crust samples using an electromagnet.
They showed that the patterns of polarity in Earth's crust on one side of a mid-ocean ridge mirrored the other side.
They showed that the polarity of Earth's crust was different on each side of the mid-ocean ridge.
They used a magnetometer to change the magnetic signature of rocks on either side of the mid-ocean ridge.
- 36. Multiple Choice
What evidence further supports the theory of seafloor spreading? (The crust near the mid-ocean ridge younger than the crust far from the mid-ocean ridge.)
Sediment is older and thinner farther from the mid-ocean ridge.
Thermal energy is higher under the abyssal plain.
Thermal energy is higher over the abyssal plain than close to the mid-ocean ridge.
Sediment is very thick at the mid-ocean ridge.
- 37. Multiple Choice
What does plate tectonics cause? (Scientists believe the hot interior of Earth causes movement of the plates and formation of Earth's topography.)
forms mountains
forms ocean basins
causes volcanoes
all answers are correct
- 38. Multiple Choice
What tool helps us study the seafloor?
Submarine
Echo Sounder
Radar
Richter Scale
- 39. Multiple Choice
What is directly below the Earth's crust?
Lithosphere
Mantle
Outer Core
Inner Core
- 40. Multiple Choice
Molton rock located in the Mantle is called what?
Magma
Lava
Plastic
Flow
- 41. Multiple Choice
What happens to the molten rock when it hits the Earth's surface from the mid-ocean ridge?
The lava will spill out onto the land, burning everything in its path
The lava will damage the water molecules in the ocean, making the seafloor inhabital
The lava will solidify, becoming part of the seafloor
The lava will solidify and block any new lava from reaching the Earth's surface
- 42. Multiple Choice
Where is the oldest rock going to be located on the seafloor?
Closest to the mid-ocean ridge
Along the mid-ocean ridge
Furthest away from the mid-ocean ridge
Basalt that is closest to the mantle
- 43. Multiple Choice
A state in which magnetized objects would reverse and orient themselves to point south is called what?
Southern polarity
Reversed polarity
Normal polarity
Magnetic reversal
- 44. Multiple Choice
How can scientists know what kind of polarity the Earth was in at any given time?
Scientists can guess based on how long it takes for magnetic reversal to happen
Scientists can use a compass to determine polarity presently
Scientists can use magnetic signatures in rocks and determine their age
Scientists are not able to determine this information
- 45. Multiple ChoiceConvection currents in the Earth's mantle are caused byLess dense hot magma moving downwardLess dense hot magma moving upwardTectonic plate movementMore dense cooler magma moving upward
- 46. Multiple ChoiceWhat causes convection currents to occur in the Mantle?heat from the crustheat from the mantleheat from the coreheat from the sun
- 47. Multiple Choice
Convection is occurring in the earth because there is
A temperature and density difference in the earth
No temperature or density difference in the earth
- Answer choicesTagsAnswer choicesTags