What is seafloor spreading?

Magma pushes up between plates making new floor

All of these are true EXCEPT

There are gaps between the plates that go to the mantle

What is happening under a mountain range in the middle of a continent

two continental plates are colliding

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How Is The Earth Changing Final Review

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A review for IQWST

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Questions 19

Answers

1
What was the key piece of evidence that Wegener was missing?
Hot spots
Fit of continents
Convection currents
Seafloor spreading
2
What feature is found at a convergent subduction zone
shallow earthquakes only
rift valleys and mountains
deep sea trenches and volcanos
seafloor spreading and ridges
3
Continents have what types of rock?
Less dense granite
less dense basalt
More dense basalt
More dense granite
4
What type of boundary is this?
Convergent
Divergent
Subduction
Transform
5
What type of boundary is this?
Convergent
Transform
Divergent
Convergent Subduction
6
All plate boundaries have
volcanoes
trenches
earthquakes
mountains
7
What is seafloor spreading?
New dense rock sinks pushing up old rock
Old rock pushes floating continents away from each other
Magma pushes up between plates making new floor
magma pushes up in the middle of a plate creating an island
8
What model best represents the true size and shape of the earth
Political globe
Physical globe
Political map
Physical map
9
What type of boundary is this?
Subduction
Transform
Convergent
Divergent
10
Hawaii is an ancient chain of volcanos with an active one at the end. How did it form?
Through a hot spot
Through a lovely song about lonely volcanos
Through seafloor spreading
Through convection currents
11
All of these are true EXCEPT
There are gaps between the plates that go to the mantle
There are oceanic and continental plates
Plates move on softened rock
There are about 15 plates and they all meet
12
Plates sit on top of
Nothing
melted rock
softened rock
water
13
Where is the youngest rock found?
In the middle of the plates
At divergent boundaries
At convergent boundaries
At transform boundaries
14
Volcanos are found at
edges of plates
all of these
convergent subduction zones
hot spots
15
What is happening under a mountain range in the middle of a continent
two continental plates are diverging
two continental plates are colliding
Nothing, mountains have always been there
magma is coming up at hot spots making mountains
16
Which is NOT an example of Wegener's evidence for continental drift?
glacial evidence
climate change
plant and animal fossils
seafloor spreading
17
How does earth's plates cycle
all of these
plates subduct at trenches
plates soften into magma and rise up again
magma rises at the mid ocean ridge making new plate material
18
What type of boundary is this?
Divergent
Convergent
Transform
Subduction
19
What model best represents the locations of plate boundaries
Political globe
Physical globe
Political map
Physical map

How Is The Earth Changing Final Review Flashcards | StudBud