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Earth's Layers
Test Description: Answer the review questions.
Instructions: Answer all questions to get your test result.
1) Earth's thinnest layer is the _________________________.
A
core
B
outer core
C
crust
D
inner core
2) Which of these layers is the coolest?
A
inner core
B
mantle
C
crust
D
outer core
3) The _________________________ is composed of Earth's crust and solid upper mantle.
A
asthenosphere
B
inner core
C
lithosphere
D
outer core
4) Earth's rocky outer layer is the ________________________.
A
asthenosphere
B
outer core
C
crust
D
mantle
5) The part of Earth's rocky outer layer that makes up the landmasses is the ___________________.
A
oceanic crust
B
continental crust
C
asthenosphere
D
mantle
6) The part of Earth's rocky outer layer that makes up the floor of the ocean basins is the __________________.
A
continental crust
B
oceanic crust
C
mantle
D
asthenosphere
7) Earth's inner core is ______________________because it is _____________________.
A
liquid; under a lot of pressure
B
solid; under a lot of pressure
C
liquid, very hot
D
solid; very hot
8) The average thickness of Earth's lithosphere is _______________________ kilometer(s).
A
1000
B
100
C
10
D
1
9) Select the sequence that lists Earth's layers from hottest to coolest.
A
mantle, crust, core
B
core, mantle, crust
C
crust, core, mantle
D
mantle, core, crust
10) Continental crust is made largely of _________________, which oceanic crust is made largely of ________________.
A
nickel; iron
B
granite; basalt
C
basalt; granite
D
iron; nickel
*select an answer for all questions
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