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earthquakes and volcanoes review Flashcards | StudBud
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earthquakes and volcanoes review
earthquakes and volcanoes review
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Answers
1
What is an earthquake’s numerical measurement of its size or strength?
Richter scale
magma
magnitude
2
Which of the following is not pieces of evidence that the Pangaea existed.
continents fit like puzzle-like pieces
similar rock structures within mountain ranges
ring of fire
fossils of plants and animals on separate continents
3
When two plates collide (convergent), what can possibly result?
trenches only
mid-ocean ridges and trenches
volcanoes, mountains, and trenches
mountains and trenches only
4
The Hawaiian Islands formed over a ______, which is a relatively fixed location in the mantle.
focus
trench
ridges
hot spot
5
Reverse faults at transform boundaries slide past each other.
True
False
6
What is the name of the supercontinent that existed about 300 million years ago?
Panama
Pangea
North America
Europe
7
Seismic waves are caused by earthquake energy released as vibrations.
False
True
8
Earthquakes can occur at all boundaries
True
False
9
At convergent boundaries, volcanoes form when...
plate motion that produces stress along a plate boundary.
magma rises to fill the space between diverging plates.
subducting plates melt to form magma, rises to the surface,erupts as lava.
10
What type of stress causes a plate to come pull apart in opposite directions?
compression
tension
shearing
11
A _____forms when the force on the tectonic plates creates a sudden
break in the rock of Earth’s crust or mantle.
focus
mountain
ridges
fault
12
Which type of stress causes strike-slip faults to break?
shearing
compression
tension
13
According to the picture, what type of plate boundary would you find a subduction zone?
convergent
divergent
transform
14
continental plates are more dense than oceanic plates
True
False
15
Which type of fault occurs at divergent boundaries, where plates move apart?
strike-slip
transform
normal
reverse
16
The majority of earthquakes occur at which type of boundary?
divergent
convergent
transform
17
Geologists use seismographs to record seismic waves and determine the location and magnitude of earthquakes.
False
True
18
What is the force that acts on rock to change its shape or volume?
focus
fault
boundaries
stress
19
Which idea did Alfred Wegener propose?
greenhouse effect
seafloor spreading
continental drift
convection currents
20
A volcano forms when molten material from the _____ reaches Earth’s surface and erupts as _______
.
crust/lava
mantle/lava
core/magma
mantle/magma