Inside The Earth Question Preview (ID: 36187)


Reviewing The Interior Of The Earth.

How do scientists classify the different layers of the Earth?
a) Physical properties and chemical composition
b) Physical properties only
c) Chemical composition only
d) Depth and thickness

According to the wave speeds shown below, which layer is the densest?
a) Layer A- 12km/s
b) Layer B-4 km/s
c) Layer C-8 km/s
d) Layer D-10km/s

S waves travel through
a) Only liquids
b) Only solids
c) Solids and Liquids
d) Only gasses

Which seismic waves can travel through the Earth's core?
a) P waves
b) S waves
c) Both P and S waves
d) Nothing can travel through the Earth's core

Which seismic waves can travel through the earth's mantle?
a) Both P and S waves
b) Only P waves
c) Only S waves
d) Nothing can travel through the Earth's core

No one has been able to drill deeper than a few miles into Earth's crust. So how do scientists know what is below the crust?
a) They use seismic waves produced by earthquakes
b) They use reverse telescopes to see deep down
c) They use fossils to show what the Earth used to look like
d) They use large drills to drill deep into the Earth's mantle

P waves can travel through...
a) Solids and liquids
b) Only solids
c) Only liquids
d) Only gasses

What happens to density as temperature increases?
a) Density also increases
b) Density decreases
c) Density stays the same
d) Density increases slowly then sharply decreases

Which layer of Earth's interior is made up of primarily solid iron?
a) Inner Core
b) Outer Core
c) Crust
d) Mantle

Which causes the movement of tectonic plates?
a) Convection occurring beneath the Earth's crust
b) Gravitational pull between Earth and the moon
c) Energy produced by earthquakes within the Earth
d) Rotation of liquid rock found within the core

Which of the following Earth layers has the greatest density?
a) Inner Core
b) Outer Core
c) Crust
d) Mantle

The cause of plate movement on the Earth's surface are caused by convection currents that occur where?
a) The Mantle
b) The Core
c) The Lithosphere
d) The Inner Core

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