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