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Plate Tectonics Flashcards | StudBud

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Plate Tectonics

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Questions 12

Answers

1
Convection currents within the Earth's mantle
is what causes plates to stop moving
are the result of aliens
are the force that move the continents
are caused by earthquakes
2
This theory states that the oceans are getting bigger at ocean ridges
Sea Floor Spreading
Unicorns
Hot Spot
Subduction
3
When one plate "sinks" below another plate and eventually melts is called
tacos!
a fault
a ridge
subduction
4
The theory that states that the continents are slowly moving
Wegener
continental drift
subduction
plate tectonics
5
Alfred Wegener is a German scientist who came up with the theory of ______.
density
convection
continental drift
plate tectonics
6
A mid-ocean ridge is:
is where new rock (ocean crust) is formed
is an underwater mountain range
caused by two diverging tectonic plates
all of the above
7
Alfred Wegener was unable to PROVE his theory of continental drift because
He could not explain how the continents moved
The continents don't move
He could not match fossils on different continents
He could not match glaciers, mountains, rocks on continents
8
What is basal drag?
magma's current moving the plate
Two plates colliding
one plate going under another plate
magma pushing plates apart
9
Slab pull has what type of plate boundary?
bilateral
convergent
transform
divergent
10
Ridge push causes ___________.
seafloor spreading
convergent plate boundaries
seafloor sinking
transform plate boundaries
11
If an object is more dense than everything around it, then....
it will sink
eventually gain the same density as everything around it
it will rise and float
nothing will happen
12
Earthquakes usually occur at
at plate boundaries
at the Earth's core
at night
at the center of tectonic plates