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Earth Layers and Plate Boundaries Flashcards | StudBud
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Earth Layers and Plate Boundaries
Earth Layers and Plate Boundaries
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Lessons 16 and 17
Flashcards
27 cards
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Questions
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Answers
1
What is the MOST likely rate of tectonic plate movement at the San Andreas Fault?
40 centimeters per year
0.04 centimeter per year
4.0 centimeters per year
0.4 centimeter per year
2
The rate at which lithospheric plates move is BEST compared to the speed that
human fingernail grows
car travels on a highway
meteroid passes through the atmosphere of Earth
rocket escapes from the atmosphere of Earth
3
This type of boundary is called
transform
divergent
convergent
4
Which will MOST likely happen because a divergent boundary?
water moves to higher latitudes
new sea floor forms
tides become higher
winds become stronger
5
What is most likely to occur here?
rift valley
sea floor spreading
earthquakes
mountain range
6
An area of volcanic activity that is not near a plate boundary is called a ____.
ring of fire
cold spot
ring of ice
hot spot
7
Which of the following would not be found at a divergent boundary?
new crust
mountain
mid-ocean ridge
rift valley
8
The most likely cause of earthquake activity on the West Coast of the U.S. is
landslides from coastal mountains
seasonal temperature changes
the slipping of tectonic plates
tidal effects from the Pacific Ocean
9
What is most likely to form at this boundary?
mid ocean ridge
volcano
mountain
rift valley
10
The top layer of Earth is known as the
outer core
crust
inner core
mantle
11
Which of these formed the Appalachian Mountains?
frequent earthquake activity
sea-floor spreading
river sediment deposition
continental plates colliding
12
Earthquakes are most likely caused by
convergent boundaries
transform boundaries
divergent boundaries
13
Earth's lithospheric plates move because of
diverging currents
confection currents
convection currents in the mantle
lithospheric currents in the mantle
14
Which statement does scientific evidence support about the movement of oceans and continents?
Continents move because of earthquakes, oceans don't
Oceans and continents rest on plates and move in slow motion
Continents move quickly across the Earth every million years
Gravity from the moon pulls continents toward each other.
15
What makes up MOST of the outer core?
liquid water
molten rock
liquid iron and nickel
hydrogen and helium gas
16
Which layer makes up most of the Earth's mass?
mantle
core
oceanic crust
continental crust
17
This picture shows _____ of the oceanic plate as it gets pushed under the continental plate.
obstruction
diffusion
subduction
perforation
18
Which of these must happen for the sea floor to spread apart?
plate movement
volcanic eruption
a hurricane
a flood
19
The area around the edge of the Pacific Ocean that has frequent earthquakes and volcanoes.
Ring of Fire
Hot Spot
South American Plate
Nazca Plate
20
The movement of lithosperic plates can cause all of the following except
earthquakes
volcanic eruptions
tornadoes
fault lines
21
This layer of Earth is composed almost entirely of solid iron and nickel due to great pressure.
inner core
crust
mantle
outer core
22
Which of these is directly caused by the movements of these tectonic plates?
sea floor spreading
global warming
ocean currents
hurricanes
23
The crust and the upper part of the mantle make up the
lithosphere
mesosphere
core
asthenosphere
24
What type of boundary is shown ?
convergent
divergent
transform
25
Which is the MOST accurate estimate for how far lithospheric plates could move in a year?
5 centimeters
5 millimeter
5 miles
2-15 feet
26
It is believed the Atlantic Ocean is increasing in width.Which is the best estimate of increase
2 kilometers per year
2 centimeters per year
2 millimeters per year
2 meters per year
27
Which is the BEST estimate for how far 2 plates may spread apart after TEN years?
5 kilometers
50 centimeters
5 meters
50 meters