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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
evidence for a one time supercontinent.
Magnetism
Fossils
Glacier Marks
Mountain Ranges
2
The mid ocean ridge is which one of the following?
Divergent Boundary
Convergent Boundary
3
Which one of the following is
not
an evidence for sea floor spreading?
Type of Rock
Magnetic Pattern
Age of the Rocks
4
Apparently, the earth's magnetic poles have reversed in the past.
False
True
5
What feature is usually found over subduction zones?
Volcanoes
Mountain Ranges
Earthquakes
All of these
6
What is it called when oceanic crust goes down into the mantle under the continental crust?
A. Divergent boundary
subduction zone
sublimation
superposition
7
Alfred Wegener showed that the sea floor was spreading and moved the continents
False
True
8
Magma that turns into rock at the mid ocean ridge, has iron crystals that record
Earth's cosmic rays
Earth's History
Earth's magnetism
Earth's gravity
9
What type of boundary is it when an ocean plate meets a continental plate?
Convergent
Subduction
Insurgent
Divergent
10
What is the name of the supercontinent when all the continents were connected?
Godwana
Pangaea
Panama
Laurasia
11
Which scientist proposed that the ocean floor was expanding around mid ocean ridges?
Alfred Wegener
Albert Einstein
Alfred Neuman
Harry Hess
12
Alfred Wegener used
sonar
to help him determine if the continents were moving.
False
True
13
The Pacific Ocean is
Contracting
Expanding
14
Which one of the following is not in the mid ocean ridge?
Volcanic Activity
Ocean Trench
Rift Valley
New Rock
15
The oceanic crust is thicker and more dense than the continental crust.
True
False
16
What force is cited as the driving force that moves the ocean plates?
Earthquakes
Volcanoes
Convection Currents
Ocean Currents
17
Which one of the following is not true of Harry Hess?
All true
Harvard Professor
Navy Officer
Scientist
18
The presence of coal in Antarctica means that this continent must have
all of these
changed climate
had tropical weather
moved over time
