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Earth structure Review Flashcards | StudBud
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Earth structure Review
Earth structure Review
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Answers
1
Volcanic activity is related to tectonic plate movement.
False
True
2
What are tectonic plates?
sections of Earth's oceans
portions of Earth's mountains
parts of Earth's continents
pieces of Earth's lithosphere
3
Seismologists study?
Earthquakes
ocean tides
volcanic activity
mountain side erosion
4
The molten, fluid rock that issues from a volcano or volcanic vent is called ____________?
Fissure
Lava
Magma
pahoehoe
5
When rock layers are stretched apart at divergent boundaries, this is called...
Subduction
Compression
Folding
Tension
6
This is the amount of energy released during an earthquake while the ground is shaking.
Intensity
Magnitude
7
German scientists Alfred Wegener developed the hypothesis of...
oceanic crust
seismology
continental drift theory
volcanism
8
Where are volcanoes most likely to form?
along bodies of water
center of continents
in mountainous areas
along plate boundaries
9
Seismologists study volcanic activity
True
False
10
The point on the Earth's surface that is directly above where an earthquake begins.
Hypocenter
Epicenter
Fault
Boundary
11
The place on the Earth's surface where an earthquake's energy is highest is known as the:
Epicenter
Focus
Fault scarp
Focal point
12
The Ring of Fire, a region with many active volcanoes, circles which ocean?
Atlantic
Arctic
Indian
Pacific
13
What is the area where two tectonic plates meet called?
a boundary
a mid-ocean ridge
a rift zone
a collision
14
The waves generated by an earthquake are mechanical waves.
True
False
15
The solid outer layer of the earth that consists of the crust and the rigid upper layer of the mantle is called the..
aesthenosphere
oceanic crust
trophosphere
lithosphere
16
Hot molten rock deep below the Earth's surface is
parent rock
magma
lava
vicious rock
17
Earth's inner core is suspended in...
all of the above
liquid iron and nickel
heated gases
solid nickel and copper
18
What causes tectonic plates to move?
solar flares
electric currents produced in the core
convection in the Earth's asthenosphere of the mantle
the dynamo effect created in the core
19
__________ of the earth's surface is covered by water.
75%
95%
60%
85%
20
Seismologists study earthquakes by reading
speedometer
seismographs
pedometer
oilergraphs
21
Waves generated by an earthquake are mechanical waves
True
False
22
An earthquake is related to a crack in the crust called....
Splinter
Crevasse
Fracture
Fault
23
vibrations that travel through Earth carrying the energy released during an earthquake
earthquake in subduction zone
plates
seismic waves
earthquake
24
Which layer of the earth is the convective layer?
inner core
outer core
crust
mantle
25
Most of the world's great mountain ranges occur near ____________ boundaries?
Transform
Convergent
Fault
Divergent
26
Large waves generated in the ocean by an earthquake, landslide, or volcanic activity are called
false
true
27
Which layer of the earth is divided up into 'plates'?
Crust
Mantle
Inner Core
Outer Core
28
The rotational motion of the earth creates a dynamo effect where a magnetic force field is created.
False
True
29
Mountains form where tectonic plates collide.
True
False
30
During an earthquake, energy is released into the earth.
True
False
31
The outer most layer of the Earth is called the
shell
mesosphere
crust
outer plate
32
Hot, molten rock that flows from a volcano is called lava.
True
False
33
The earth is composed mainly of...
rock
metals
water
iron
34
The point where earthquake energy is released during an earthquake
focus
epicenter
fault scarp
fault
35
Earth's inner core is made mainly of...
all of the above
solid iron and nickel
molten rock
heated gases
36
Tectonic plates :
move very slowly
all of the above
sometimes scrape against each other
sometimes press against or pull away from each other
37
Which process best EXPLAINS the driving force behind tectonic plate movement?
sea-floor spreading
continental drift
seismology
viscosity
