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Duplicate of Continental Drift + Seafloor Spreading Review Flashcards | StudBud
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Duplicate of Continental Drift + Seafloor Spreading Review
Duplicate of Continental Drift + Seafloor Spreading Review
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Flashcards
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Questions
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Answers
1
What did Wegener name the landmass that was made up of all continents joined together?
Subduction
Pangea
Pangaea
Mega Earth
2
As a continent moves towards the poles, it's climate _____________
Gets Colder
Gets Warmer
Stays The Same
3
"Pillow Lava" or rocks shaped like pillows form only when molten material hardens __________
Slowly
Underwater
Underground
Inside the ridge
4
What country was Alfred Wegener from?
Poland
Iceland
United States
Germany
5
As the older oceanic crust cools, it becomes what?
Less Dense
Pillow Lava
More Dense
Lighter
6
Alfred Wegener's theory that the continents slowly moved over Earth's surface is known as what?
Subduction
Continental Drift
Sea Floor Spreading
Pangea
7
What is any trace of an ancient organism that has been preserved in rock?
Glacier
Preservation
Deposit
Fossil
8
An ocean with very few trenches will probably _______________
Subduct
Shrink
Grow
Disappear
9
Which process changes the size and shape of the ocean?
Sonar Imaging
Drilling For Samples
Subduction
Sea-Floor Spreading
10
Where does sea-floor spreading occur?
Mid-Ocean Ridges
The Mantle
Deep-Ocean Basins
Deep-Ocean Trenches
11
Which was NOT a type of evidence that Wegener used to support his theory?
Sea Floor Spreading
Fossils
Landforms
Climates
12
Fill In:
Alfred Wegener noticed that certain ______ fields in Europe and North America match up
Coal
Fossil
Mountain
Mineral
13
A deep-ocean trench is an underwater ____________
Mountain
Valley
Canyon
Plateau
14
An ocean surrounded by many trenches may ____________
Dissolve
Grow
Disappear
Shrink
15
What is the name of the underwater mountain ranges that scientists like Marie Tharp discovered?
Mantle Chain
Mid-Ocean Ridge
Subduction Ridge
Deep-Ocean Trenches
16
Older rock moves ________ from either side of a mid-ocean ridge
Inward
Squidward
Outward
Upward
17
True or False: The mid-ocean ridges form the longest mountain ranges on Earth.
False
True
18
In the mid-1900's, scientists mapped mid-ocean ridges using what device?
Sonar
Radar
Lasers
Beacons
19
Which of the following is NOT evidence of sea floor spreading?
Magnetic Stripes
Drilling Samples
Fossils
Pillow Lava
20
The pattern of magnetic stripes in rocks on either side of ridge is ______________
random
different
could be the same or different
the same
21
The process by which the ocean floor sinks beneath a deep ocean trench is called ___________
Cementation
Subjugation
Compaction
Subduction
22
Wegener's theory was rejected because he could not identify what?
The specific fossil evidence
How the continents fit together
The location of Pangaea
The force that moves the continents
23
Mid-Ocean Ridges
continually add new material to the ocean floor in a process called what?
Deposition
Sea-Floor Spreading
Subduction
Cementation
24
Eventually the ocean floor plunges into deep underwater canyons we call ____________
Deep Ocean Trenches
The Mantle
The Core
The Crust
25
Where does
subduction
occur?
Inside underwater volcanoes
On warm, dry land
Along the middle of a ridge
At deep-ocean trenches
