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Layers Of The Earth
Test Description: Review the principal characteristics of Earth's major layers
Instructions: Answer all questions to get your test result.
1) Continental crust beneath mountains can be up to ___ kilometers thick
A
40
B
100
C
5
D
65
2) How thick is the oceanic crust?
A
100 km
B
5 km
C
40km
D
65 km
3) The partially molten layer beneath the lithosphere is called the ______.
A
mesosphere
B
outer core
C
asthenosphere
D
crust
4) Which of the following statements about the Earth's core is true?
A
The inner core and the outer core are both solid.
B
The inner core is liquid and the outer core is solid.
C
The inner core and the outer core are both liquid.
D
The inner core is solid and the outer core is liquid.
5) What element makes up most of the Earth's core?
A
iron
B
silicates
C
hydrogen
D
oxygen
6) Heat is transfered in the mantle mainly by
A
Convection
B
Conduction
C
Radiation
7) Which of the following statements is true about continental crust
A
The most common type of rock is basalt
B
It can be found beneath the ocean.
C
It is up to 100km thick.
D
It is thicker and less dense than oceanic crust.
8) Scientists know about earth's interior mainly because
A
They have studied the rock on the surface
B
They have studied the ocean floor
C
They have studied seismic activity from earthquakes
D
They have drilled down into the core
9) The Earth has its own magnetic field thanks to the:
A
Core
B
Mesosphere
C
Asthenoshpere
D
Crust
10) The lithoshere includes the crust and top portion of the
A
mantle
B
outer core
C
inner core
D
mesosphere
*select an answer for all questions
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