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True or False Quiz
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Determine whether each of the statements below is true or false.

1
The crust is the thickest layer of the Earth.
A)TRUE
B)FALSE
2
The mantle is the thickest layer of the Earth.
A)TRUE
B)FALSE
3
The asthenosphere is entirely within the mantle.
A)TRUE
B)FALSE
4
Volcanoes provide the source of Earth's heat.
A)TRUE
B)FALSE
5
S-waves pass through the inner core of Earth.
A)TRUE
B)FALSE
6
P-waves cannot pass through the liquid outer core of Earth.
A)TRUE
B)FALSE
7
Seismic waves travel at constant velocities through the Earth.
A)TRUE
B)FALSE
8
The Ultra-low velocity zone (ULVZ) corresponds to the D-layer of the mantle.
A)TRUE
B)FALSE
9
Meteorites have provided some insights into the structure of our planet.
A)TRUE
B)FALSE
10
Gravity is constant around our planet.
A)TRUE
B)FALSE
11
Gravity measurements provide insights into Earth's structure.
A)TRUE
B)FALSE
12
Earth's magnetic field has reversed many times during its history.
A)TRUE
B)FALSE
13
The magnetic field is constant around the Earth.
A)TRUE
B)FALSE
14
The outer core is a molten liquid.
A)TRUE
B)FALSE
15
The inner core is solid.
A)TRUE
B)FALSE
16
Much of our knowledge of Earth's structure comes from analyses of seismic waves.
A)TRUE
B)FALSE
17
Seismic waves travel in straight lines as they pass through Earth.
A)TRUE
B)FALSE
18
Seismic waves can be reflected from boundaries within Earth.
A)TRUE
B)FALSE
19
Understanding Earth's interior structure requires some knowledge of geophysics.
A)TRUE
B)FALSE
20
All geophysicists are nerds.
A)TRUE
B)FALSE





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