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Plate Tectonics Review Flashcards | StudBud
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Plate Tectonics Review
Plate Tectonics Review
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1
Mt. St. Helens erupted due to the subduction of which plate?
Pacific
Cocos
Juan de Fuca
Nazca
2
The Aleutian Islands formed due to a collision between what two types of crust?
continental-continental
oceanic-continental
oceanic-oceanic
3
What is the deepest trench in the world?
Japan Trench
Aleutian Trench
Peru-Chile Trench
Marianas Trench
4
The thickness of each stripe corresponds to
how long ago that part of the ocean floor formed
the type of magnetic polarity
how deep the ocean is
the length of time Earth had that magnetic field
5
A tsunami would most likely form in which ocean?
Indian
Atlantic
Pacific
Arctic
6
What type of rock mainly makes up the continents?
basalt
sandstone
granite
pumice
7
Which seismic waves are the fastest moving?
sonar waves
surface waves
S waves
P waves
8
Who proposed the continental drift hypothesis?
Nye
Newton
Wegner
Copernicus
9
All of the following were used as evidence for sea floor spreading except
age of sea floor
magnetic polarity of sea floor rocks
sediment thickness of the ocean floor sediments
depth of the ocean floor
10
Generally 3-4 miles thick and mafic (contains magnesium and iron)
oceanic crust
core
continental crust
mantle
11
Why does continental crust rise higher on the mantle than oceanic crust?
less dense
thicker
denser
less buoyant
12
Which layer of the Earth is the densest?
outer core
asthenosphere
inner core
lithosphere
13
Evidence of convection currents within the outer core
Earth's magnetic field
Hurricanes
Earth's spin
Volcanoes
14
What did scientists use to determine
all
of the plate boundaries?
earthquake data
location of mid-ocean ridges
location of volcanoes
location of trenches
15
What is the main thing used to study Earth's layers?
sonar
seismic waves
satellites
drilling
16
Which layer of the Earth is a liquid?
inner core
crust
outer core
mantle
17
What type of boundary is found at the San Andreas Fault?
magnetic
transform
divergent
convergent
18
The "red" areas on the seafloor represent the location of
trenches
suduction zones
mid-ocean ridges
abyssal plains
19
Ancient coral reefs are found outside of the tropics, suggesting
reefs are highly adaptable
coral reefs can thrive in colder climates
the number of coral reefs is declining
the continents shifted
20
Pictured below, what process drives plate tectonics?
convection
gravity
buoyancy
Earth's spin
21
What theory saved the idea of continental drift?
plate tectonics
sea floor spreading
big bang
evolution
22
What is the best explanation for a shadow zone?
Seismic waves only travel on Earth's surface
Seismic waves are only detected near the epicenter
P waves are refracted in different layers of the Earth
P waves can't travel through the core
23
While most divergent boundaries are found underwater, what continent is an exception?
Asia
North America
Australia
Africa
24
The best way to monitor the formation of a tsunami is by using
satellites
seismometers
sonar
boats
25
Generally 20-30 miles thick and felsic (contains silica and feldspar)
continental crust
mantle
core
oceanic crust
26
The Andes Mountains formed due to the subduction of which plate?
Nazca
South American
Pacific
Juan de Fuca
27
The Himalayas in northern India continue to rise at what type of boundary?
magnetic
convergent
transform
divergent
28
Why was the continental drift hypothesis initially rejected?
lack of rock evidence
lack of climate shift evidence
lack of a plate movement mechanism
lack of fossil evidence
29
Which of the following features is not associated with the Pacific Ring of Fire?
mid-ocean ridges
volcanoes
trenches
earthquakes
30
The country of Iceland is located along what type of boundary?
magnetic
convergent
transform
divergent
31
The epicenter of this earthquake was off the coast of
South America
Australia
Alaska
Japan
32
The Peru-Chile Trench formed due to a collision between what two types of crust?
oceanic-continental
oceanic-oceanic
continental-continental
33
Comprised of 85% iron and 15% nickel
continental crust
oceanic crust
core
mantle
34
Which layer of the Earth behaves like a plastic and flows very slowly?
outer core
asthenosphere
lithosphere
inner core
35
How do hot spot volcanoes differ from ones found at subduction zones (volcanic arcs)?
volcanoes usually more violent
volcanoes created from molten rock
hot spots are always found at plate boundaries
only one area with active volcanoes
36
What type of rock makes up the ocean crust?
basalt
granite
pumice
sandstone
37
What mountain range formed in this way?
Himalayas
Mid-Atlantic Ridge
Hawaii
Andes
38
What is being shown?
transform boundary
mid-ocean ridge
subduction zone
divergent boundary
39
Which of these did scientists not need to know to figure out the density of Earth's core?
Earth's volume
Earth's gravitational pull
The composition of the core
The average density of the crust
40
Which layer of the Earth is brittle and is broken into plates?
outer core
lithosphere
inner core
asthenosphere
41
Which of the following is not one of the major features of the ocean floor?
trenches
craters
mid-ocean ridges
abyssal plains
42
What is the
best
evidence for subduction?
earthquake data
volcanoes
mid-ocean ridge
trench
43
This layer of the Earth is thought to have the same composition as meteorites.
mantle
core
lithosphere
asthenosphere
44
Who proposed the idea of sea floor spreading?
Harry Hess
Albert Einstein
Alfred Wegener
Harry Truman
45
Through which layer of the Earth can S-waves not travel?
inner core
crust
mantle
outer core
