Why is the inner core solid when it is the hottest layer?

Because of the enormous pressure

Which physical layer is made of 2 compositional layers?

The lithosphere is made of the crust and upper mantle

A seismic wave suddenly slows down inside Earth. Why?

It went from a solid layer to a liquid layer

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Earth science review#1

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Questions 16

Answers

1
How are the plates moving at point A?
Under one another
Side to side
Apart
Together
2
Which layer is more dense than the outer core?
Mesosphere
Asthenosphere
Lithosphere
Inner core
3
Why is the inner core solid when it is the hottest layer?
Because of the enormous pressure
Because of its size
Because of its density
Because of its composition
4
What concept is illustrated here?
Celestial tides
Continental drift
Planet formation
Plate tectonics
5
Which physical layer is made of 2 compositional layers?
The mantle is made of the asthenosphere and mesosphere
The core is made of the inner and outer core
The crust is made of oceanic and continental crust
The lithosphere is made of the crust and upper mantle
6
Which one is a characteristic of the lithosphere?
It's hot
It's solid and rigid
It's under immense pressure
It flows like magma
7
The theory of plate tectonics is supported by?
Magnetic reversal
Location of geologic activity
All of the above
Sea floor spreading
8
Where did Wegener find all of his evidence?
In space
Above the oceans
Below the oceans
On Mt. Everest
9
Where inside the Earth would you find convection currents?
Asthenosphere and mesosphere
Inner core
Asthenosphere Only
Mesosphere only
10
What evidence was used to support the idea that continents were once joined as one landmass?
Same fossil on different climates
Matching coastlines
All of the above
Tropical fossils found in areas where there is ice
11
The layers of the Earth are distinguished by a sudden change in what?
Density
Temperature
Pressure
Composition
12
What is the driving force that moves the tectonic plates?
Spinning core
Convection currents
Magnetic field
The lithosphere
13
A seismic wave suddenly slows down inside Earth. Why?
It went from a solid layer to a liquid layer
It went from a non-metal layer to a metal layer
It hit a rock
It went from a liquid layer to a solid layer
14
Where is the crust the thinnest?
Along mountains
In earthquake areas
Subduction zones
Mid ocean ridges
15
Which seismic wave cannot go through the liquid outer core?
Raleigh waves
S waves
L waves
P waves
16
If you were to plot earthquakes and volcanic eruptions, where would most of them be located?
Only on land
At tectonic plate boundaries
Randomly spaced around the Earth
In the middle of tectonic plates

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