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CH 13 - Plate Tectonics Flashcards | StudBud
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CH 13 - Plate Tectonics
CH 13 - Plate Tectonics
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Quiz tied to BSCS year 2, CH 13.
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
The oldest oceanic crust is most likely to be found:
In the shallowest part of the ocean.
Near a mid-oceanic ridge.
Near a subduction zone.
In the middle of the oceanic plate.
2
Oceanic plates are _______ than continental plates.
always thicker
more dense
usually lighter
less dense
3
This kind of pictured boundary usually results in tall mountains and trenches.
Convergent
Transform
Divergent
4
Where the crust is thinner, pools of magma can build up - also known as
Crust
Hot Spot
Trench
Convection Current
5
The ____ states that layers of sediment were originally deposited horizontally by gravity.
Unconformities
Uniformitarianism
Law of Superposition
Law of Original Horizontality
6
Which would be the most unusual feature to find on Earth's surface?
A mountain range near the ocean.
An underwater volcano.
A ridge in the middle of the ocean.
A single, large, non-volcanic mountain on a flat plain.
7
What can scientists learn from the sequence of rock layers?
The impact that local hikers have on the area.
The absolute number of organisms that live in the area.
Predictions for future geological events.
The geological history of the area.
8
What event is most likely to occur at the boundary shown?
An earthquake.
Formation of a volcanic island.
Formation of a trench.
Formation of a mountain range.
9
What best describes the relationship between earthquakes and volcanoes?
Earthquakes and volcanoes create plate tectonics.
Volcanic eruptions are the cause of most earthquakes.
Earthquakes most often cause volcanic eruptions.
Earthquakes and volcanoes often occur where plates meet.
10
Magma's cycle of heating, rising, cooling, and sinking is called:
a transform fault.
a convergent boundary.
a convection current.
a subduction zone.
11
According to the Law of Superposition, the oldest fossils are found:
Near the bottom of the rock layers.
Evenly spread amongst all rock layers.
At the top of the rock layers.
In the middle of the rock layers.
12
This plate boundary results in earthquakes when energy stored between plates is released.
Earthquake boundary
Divergent boundary
Transform boundary
Convergent boundary
13
In addition to the mantle's convection currents, this force helps subduct plates:
Hot magma.
Trenches.
The plate's own mass.
The Law of Superposition.
14
New crust on the Earth is most likely found at:
Transform faults.
The peak of tall mountains.
The subduction zone.
A mid-oceanic ridge.
15
The Law of Superposition helps scientists determine:
The age of fossils.
What positions superheroes used to hold.
The absolute age of rock layers.
The relative age of rock layers.
16
Plates tend to push away from ______ boundaries and towards ______ boundaries.
convergent, transform
convergent, divergent
transform, convergent
divergent, convergent
17
According to the law of superposition, which layer is the youngest?
A
C
E
H
18
What best explains the presence of identical rock types and fossils on land separated by sea?
The continents were joined together in the past.
Organisms swam across great seas.
Rocks and fossils are evenly distributed across Earth.
Plants could swim better in the past.
19
This type of boundary usually results in a rift or valley.
Divergent
Convergent
Transform
20
Which rock layer in the diagram seems to be the oldest?
F
D
E
B
