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Continental Drift/ Sea Floor Spreading Flashcards | StudBud
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Continental Drift/ Sea Floor Spreading
Continental Drift/ Sea Floor Spreading
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Used for review in Earth Science before a test on Sea Floor Spreading.
Flashcards
18 cards
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Practice quiz
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Questions
18
Answers
1
Which one of the following is
not
an evidence for sea floor spreading?
Type of Rock
Age of the Rocks
Magnetic Pattern
2
Apparently, the earth's magnetic poles have reversed in the past.
True
False
3
Which scientist proposed that the ocean floor was expanding around mid ocean ridges?
Harry Hess
Alfred Wegener
Albert Einstein
Alfred Neuman
4
Which one of the following is
not
evidence for a one time supercontinent.
Mountain Ranges
Glacier Marks
Fossils
Magnetism
5
What feature is usually found over subduction zones?
Volcanoes
Mountain Ranges
Earthquakes
All of these
6
Magma that turns into rock at the mid ocean ridge, has iron crystals that record
Earth's gravity
Earth's magnetism
Earth's cosmic rays
Earth's History
7
Alfred Wegener showed that the sea floor was spreading and moved the continents
True
False
8
The mid ocean ridge is where the following is occurring?
An oceanic plate is going under a continental plate
Two oceanic plates are moving apart
Two oceanic plates are pushing together
Deep ocean trenches are formed by subduction
9
The oceanic crust is thicker and more dense than the continental crust.
True
False
10
This Map shows the
Mid Oceanic Ridges
The Countries of the World
The Major Tectonic Plates
Evidence for a flat earth
11
What force is cited as the driving force that moves the ocean plates?
Volcanoes
Convection Currents
Ocean Currents
Earthquakes
12
Which one of the following is Evidence of Sea Floor Spreading?
Similar fossils on different continents
The continents fitting together like a jigsaw
The sediment thickness on the ocean floor
Glacial Striation
13
What is found where an oceanic plate meets a continental plate?
A rift valley
A deep oceanic trench
A valley
A mid oceanic ridge
14
The presence of coal in Antarctica means that this continent must have
changed climate
all of these
moved over time
had tropical weather
15
Which one of the following is not in the mid ocean ridge?
New Rock
Ocean Trench
Volcanic Activity
Rift Valley
16
What is it called when oceanic crust goes down into the mantle under the continental crust?
sublimation
subduction zone
superposition
A. Divergent boundary
17
What is the name of the supercontinent when all the continents were connected?
Panama
Pangaea
Godwana
Laurasia
18
Alfred Wegener used
sonar
to help him determine if the continents were moving.
True
False
