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15
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If scientists can ONLY detect P waves in a certain layer of the Earth's interior, what does that tell us?
We know that the layer is the mantle.
We know that the layer could be either liquid or solid.
We know that the layer is liquid.
We know that the layer is solid.
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15
×
Which is NOT one of Earth's four spheres?
The geosphere
The hydrosphere
The biosphere
The troposphere
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15
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A plant rooted in the ground has a connection to which sphere(s)?
Biosphere only
Hydrosphere, atmosphere, and geosphere
Geosphere, biosphere, hydrosphere, and atmosphere
Biosphere and hydrosphere only
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15
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Which of these is part of the Earth's lithosphere?
Core
Hydrosphere
Crust
Liquid Mantle
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15
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What is the cause of earthquakes, volcanoes, and mountains on Earth?
Convection currents in the crust.
Movements in the outer core.
Convection currents in the mantle.
Sinking of the oceanic crust.
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15
×
How do we know that seismic waves have reached a new layer in the Earth's interior?
Nothing happens, they simply travel through.
They change speed as they reach different layers.
They travel all the way to the core before bouncing back.
They get bounced back when they reach the mantle.
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lifesaver
Give 25 points!
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seesaw
Swap points!
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rocket
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banana
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boom
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star
Double points!
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gift
Win 20 points!
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thief
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25
15
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Which parts of the Earth are contained in the lithosphere?
Both the inner and outer core.
The lower mantle and the crust.
The upper mantle and the crust.
The outer core and lower mantle.
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lifesaver
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gold
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fairy
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25
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thief
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15
×
Why can both P and S waves travel through the mantle?
Parts of the mantle are solid and other parts are liquid.
The mantle is a liquid.
The mantle is not very far below the Earth's surface.
The mantle is a solid.
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15
×
Why is rain not part of the atmosphere?
Because it moves between spheres.
Because it is part of the biosphere.
Because it is part of the hydrosphere.
Because it is part of the geosphere.
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15
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How are mantle plumes and hot spots related?
None are correct
Mantle plumes rise & break through the crust, make hot spots
Hot spot is another word for mantle plume.
Hot spots erupt and form mantle plumes.
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15
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Which of these is NOT one of the four spheres of Earth that are said to drive all its processes and support life on the planet?
Atmosphere
Hydrosphere
Lithosphere
Geosphere
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monster
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rocket
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rocket
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lifesaver
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15
×
Why is the inner core solid?
Because of plasticity.
Because it consists mostly of silicon.
Because it is under too much pressure to melt.
Because it is very hot.
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