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Pangea And Seafloor Spreading
Test Description: A quiz about Pangea and seafloor speading.
Instructions: Answer all questions to get your test result.
1) What is the continental drift theory?
A
C) the belief that continents have always been located at their current locations on Earth
B
the belief that continents are moving slowly together from their current locations on Earth
C
the belief that continents have moved slowly apart to their current locationson Earth
D
the belief that continents have quickly moved apart to their current locations on Earth
2) Who first proposed the theory of continental drift?
A
Galileo Galilei
B
Albert Einstein
C
Harry Hess
D
Alfred Wegener
3) What is Pangaea?
A
the largest fault found on Earth
B
Earth's inner core
C
the large landmass that all continents are currently forming
D
the large landmass in which all continents once were connected
4) What clue supported the continental drift theory?
A
Fossils of animals have been found on continents separated by oceans.
B
all of the above
C
a puzzle-like fit of all the continents
D
Similar rock structures have been found on different continents.
5) What evidence proved that South America, Africa, India, and Australia were once covered by glaciers?
A
glacial deposits and rock surfaces scarred by glaciers
B
leftover portions of glaciers
C
cold climates
D
enormous valleys formed by glaciers
6) How do scientists use sound waves to figure out the shape of the ocean floor?
A
The longer it takes a sound wave to return to the ship, the colder the water is.
B
The less time it takes a sound wave to return to the ship, the deeper the water is.
C
The longer it takes a sound wave to return to the ship, the deeper the water is.
D
The longer it takes a sound wave to return to the ship, the more shallow the water is.
7) Why was the discovery of no rocks older than 2 billion years old on the ocean floor so important?
A
This evidence proved that new seafloor features are constantly being added due to reversals of Earth
B
A) This evidence proved that the rocks on the seafloor were older than rocks on continents.
C
This evidence proved that new seafloor features are constantly being added due to continental drift.
D
This evidence proved that new seafloor features are constantly being added due to seafloor spreading
8) How do scientists explain the formation of underwater mountain ranges?
A
continental drift
B
strike-slip faults
C
seafloor spreading
D
convection currents
9) What is a magnetic field reversal?
A
when Earth's magnetic field leaves the south pole and enters the north pole
B
when Earth's magnetic field suddenly runs east/west instead of south/north
C
when Earth's magnetic field leaves the north pole and enters the south pole
D
when Earth's magnetic field suddenly disappears for short periods of time
10) What tool does a scientist use to detect magnetic fields?
A
a magnetogram
B
a magnetometer
C
a fieldometer
D
a thermometer
*select an answer for all questions
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