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Adrift Over Continental Drift Flashcards | StudBud
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Adrift Over Continental Drift
Adrift Over Continental Drift
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1
Wegener believed that all the continents were once together as one supercontinent.
true
idk
maybe
false
2
The theory of CD explains how . . .
. . . the continents were formed
. . . the continents move around on Earth
. . . old the continents are
. . . why we have continents
3
Why was Wegener's theory dismissed by other scientists?
Wegener was pretty conceited
They thought it was just a hoax
He couldn't explain HOW the continents moved
He had no evidence for his theory
4
Which of the following IS NOT part of the evidence Wegener found for continental drift?
climate evidence
identical rocks on different continents
fossils of identical animals on different continents
changing ocean currents
5
What additional evidence exists to support the idea of sea-floor spreading?
there is no evidence
reversals in earth's magnetic field
oceanic crust is thinner than continental crust
fossil evidence
6
What scientist is credited with developing the theory of continental drift?
Albert Einstein
Alfred Wegener
Billy Wagner
Dr. Evil
7
Wegener called the supercontinent . . .
Panda
Pandemonium
Pandora
Pangaea
8
Continental drift can explain all of the following EXCEPT. . .
the depth of the ocean
mountain ranges
earthquakes
volcanoes
9
Pangaea is believed to have existed how many years ago?
250,000,000,000
250,000,000
250,000
250
10
According the CD theory, the continents are continuing to drift every year.
false
at this point, only our brains are drifting
yeah, right
true
11
Almost 50 years later, what process was discovered that could explain how the continents drift?
earthquakes and seismology
trick question, there is no explanation
sea-floor spreading
super volcanic eruptions
12
What feature of the Earth led Wegener to start thinking about continental drift?
The view of Earth from space
The discovery of undersea mountains
The length of the Equator
The shape of the continents
