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Unit 3 Geoscience Flashcards | StudBud
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Unit 3 Geoscience
Unit 3 Geoscience
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Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
Based on the map, put the hazard levels in order from highest to lowest: [dark= closer to a fault]
A, B, C
B, A, C
C, B, A
A, C, B
2
Tectonic plates move away from each other, mostly underwater, seafloor spreading can occur, lithosphere is made
at ...
Divergent Boundaries
Transform Boundaries
Convergent Boundaries
3
How do tsunamis form?
When a butterfly flaps its wings.
A large rock falls into the ocean and the wave just keeps getting bigger.
Earthquakes at in the middle of the ocean.
They don't, tsunamis aren't real.
4
Which wave moves faster, S, P or Surface waves?
S waves
Surface Waves
P Waves
The all move the same speed.
5
A subduction zone occurs at a divergent boundary when the crust of one plate begins to sink below the other plate.
True
False
6
After an earthquake, many of the buildings settle unevenly, this is evidence that liquification
occurred.
True
False
7
How far away is your seismic station from the epicenter of the earthquake?
5000 km
2000 km
Not enough information.
1000 km
8
Projectiles from a volcano are called pyroclastic material.
True
False
9
Tectonic plates slide past one another, nothing changes with the lithosphere, valleys and earthquakes produced at ...
Divergent Boundaries
Transform Boundaries
Convergent Boundaries
10
What part of the volcano is the vent?
A
C
D
B
11
What information would be helpful in advising the construction of structures in the high risk liquefaction regions?
Use rigid foundation connections &push pilons deep enough to hit firm soil.
Ensure the foundation moves as a whole unit.
Decrease density of nearby soil by removing loose soil.
All answers are correct.
12
How much time passed between the S and P waves?
15 minutes
3 minutes
There is not enough information
7 minutes
13
Why do earthquakes occur on fault lines?
Fault lines produce a lot of motion on the crust of the earth.
Fault lines produce a lot of motion on the core of the earth.
Fault lines produce a lot of motion on the mantle of the earth.
Fault lines produce a lot of motion on the lithosphere of the earth.
14
Where do earthquakes occur?
At fault lines.
What is an earthquake?
On the edge of continents.
Under volcanos.
15
What type of the volcano is this?
Lava Dome
Composite Cone
Sheild
Cinder Cone
16
What part of the volcano is the crater?
A
D
C
B
17
What factors should design engineers consider when recommending construction constraints in an EQ prone area?
Historical EQ intensity and duration of the area
All answers are correct
Nature of the building materials
Design of structures
18
Tectonic plate move towards each other, subduction occurs, mountains are formed, lithosphere is destroyed at ...
Divergent Boundaries
Convergent Boundaries
Transform Boundaries
19
What factors affect the melting point of rock?
Water content
Pressure of the surrounding rocks
Composition of the material
All answers are correct
20
Transverse wave that runs perpendicular to crust, used to determine outer core layer of earth was liquid, medium speed
P waves
S waves
Surface waves
21
What is the most abundant gas associated with volcanic activity?
Water Vapor
Carbon Monoxide
Oxygen
Carbon Dioxide
22
Why is it important for seismologists to be able to map the location of faults on our
planet?
Faults are where you usually get some sort of magma flow.
They're really not that important, that is just fake news.
Faults are where earthquakes are most likely to happen.
That is where the ghostbusters can store evil ghosts.
23
Highly explosive volcanoes tend to have what type of magma?
High amounts of silica
Large amounts of gas
All answers are correct
High viscosity
24
Which of the following claims could be made about a subduction zone?
Creation of mountain ranges has impacts local weather patterns
Subduction zones make volcanic mountain range, mantle and lithosphere
Volcanic eruptions could change the land and could lead to new rock layers.
Creation of mountain ranges will lead to climate changes in the area
25
By the time the earthquake’s waves reached your station, how long had the earthquake already been active?
Not enough information.
7 minutes
4 minutes
3 minutes
26
What is a tsunami?
Japanese for earthquake
A really bad rain storm
Japanese for volcano
A giant wave
27
The epicenter of the earthquake can be determined using no less than 3 stations worth of data.
False
True
28
Compressional wave, fastest speed, least destructive, can travel through planet to opposite side of earth
S waves
P waves
Surface waves
29
Slowest speed, most destructive, transverse wave that propagates parallel to crust.
Surface waves
S waves
P waves
30
How are temperatures and viscosity of lava related?
If the temperature goes up the viscosity goes up.
If the temperature goes down the viscosity goes up.
Nothing happens to viscosity when the temperature changes.
