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CHANGING EARTH: Plate tectonics, seafloor spreading, rocks... Flashcards | StudBud
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CHANGING EARTH: Plate tectonics, seafloor spreading, rocks...
CHANGING EARTH: Plate tectonics, seafloor spreading, rocks...
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Plate tectonics, sea floor spreading, continental drift review
Flashcards
26 cards
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Questions
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Answers
1
Which scientists is credited with the continental drift hypothesis?
Neil Armstrong
Alfred Wegener
Harry Hess
J. Tuzo Wilson
2
What is the approximate rate of plate movement?
a few meters a year
a few centimeters a year
a few millimeters a year
a few kilometers a year
3
What happens to rock around a subducting slab?
It combines with the other rock
It goes under the other plate
It disappears from Earth
It goes over the other plate
4
What do scientists believe is the force behind the plate tectonics theory?
the movement of the planets
convection currents
the Sun's gravity
gravity slab pull
5
Which rock forms when molten rock cools and becomes solid?
sedimentary
igneous
mineral
metamorphic
6
What type of plate boundary moves towards one another?
transform
divergent
convergent
reverse
7
How is the magnetic pattern formed at mid ocean ridges?
older at ridge, younger at trench
shows hot spots
randomly arranged
same on either side of ridge
8
What are earth's layers from cent to surface?
inner core, outer core, mantle, crust
inner core, mantle, outer core, crust
crust, mantle, outer core, inner core
inner core, outer core, crust, mantle
9
What is a naturally formed solid made of one or more minerals?
cave
stalagmite
volcano
rock
10
A divergent boundary is a boundary between two plates that_______________________.
slide along each other
move toward each other
converge
move away from each other
11
What happens at convergent oceanic to oceanic boundaries?
plates move past each other sideways
plates move toward each other and volcanoes form
plates move apart and volcanoes form
plates are not moving
12
Where might mountains forms?
Transform boundarie
Magnetic Boundaries
Divergent boundaries
Convergent boundaries
13
Which of the following is true about the lithospheric plates?
The move annually
They move occasionally
They constantly move
They never move
14
What is the name of the supercontinent that Alfred Wegener theorized about?
North America
Pangaea
Laurasia
Gonwanaland
15
Which is most common rock found on Earth's surface?
basalt
sedimentary
metamorphic
ingneous
16
What is the process occurring in the mantle's asthenosphere that drives plate tectonics?
normal fault
convection current
plate boundary
divergent boundary
17
Which is evidence of continental drift that Wegener himself used?
earthquake data
convection currents
sea-floor spreading
similar rocks & fossils
18
Which of the following is used as evidence of seafloor spreading?
fossil evidence
climate clues
rock clues
magnetic pole reversal
19
How do scientists explain the formation of underwater mountain ranges?
convection currents
continental drift
seafloor spreading
strike-slip faults
20
Which rock forms from heat and pressure?
chalk
igneous
metamorphic
sedimentary
21
The youngest rocks in the ocean floor are located at the mid-ocean_______.
trenches
basins
ridges
volcanoes
22
The cycle of heating, rising, cooling, and sinking is called a _______________.
Convection current
Conduction current
Convergent boundary
Subduction zone
23
What type of plate boundary has plates sliding past each other?
transform boundaries
convergent boundaries
subduction zones
divergent boundaries
24
A tectonic plate is a slab of Earth's..
asthenosphere & inner core
crust & upper mantle
molten mantle & outer core
asthenosphere & lithosphere
25
What causes geologic events such as earthquakes, volcanoes, and the creation of mountains?
Atmospheric pressure
Ocean tides
Position of the planets
Lithospheric plate movement
26
Do two colliding continental plates ALWAYS cause volcanoes?
No
Yes
