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The Changing Earth
The Changing Earth
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Review of the layers of the Earth, the theory of plate tectonics and tectonic boundary types.
Flashcards
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Questions
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Answers
1
What was the name of the super continent Wegener's Theory is based on?
Pategonia
Polynesia
Plantea
Pangea
2
Seismic activity is a term used to describe what?
Volcanic Eruptions
Geysers
Hot spots
Earthquakes
3
The San Andreas Fault is one of the most active faults in the world. Where is this fault found?
The Californian coastline of the USA
The Himalayas
In the middle of the Pacific
New Zealand
4
What is one piece of evidence Wegener presented to support his theory of continental drift?
There is no evidence
Similar species found across multiple continents
Similar events have taken place on multiple continents
Continents can be arranged to fit together
5
What is oceanic crust primarily made of?
Metamorphic Rock
Basalt
Igneous Rock
Magma
6
Subduction occurs at which kind of plate boundary?
Transform
Divergent
Hot spot
Convergent
7
What is the consistency of the upper part of the mantle?
Liquid
Semi-liquid
Solid
Gas
8
How are mountain ranges formed?
During subduction of two oceanic plates
At the convergent boundary of two continent plates
When a continental and oceanic plate collide
When a oceanic plate transforms with a continental plate
9
The East African Rift Valley is an example of what kind of plate boundary?
Transform
Convergent
Hot Spot
Divergent
10
What is the primary effect of subduction at some convergent plate boundaries?
Rifts
Ridges
Formation of volcanos
Earthquakes
11
The inner core is thought to be mostly solid and made of metal. What metal makes up the core?
Gold
Magma
Iron
Nickel
12
Subduction describes which of the actions below?
Oceanic plate moving over a continental plate
Continental plate moving away from a continental plate
Oceanic Plate sliding under a continental plate
Continental plate colliding with a continental plate
13
What is the term that describes the pheomenon of new crust being formed in the ocean?
<p>underwater magma flow</p>
sea floor spreading
<p>converging crust</p>
sea floor collisons
14
A divergent boundary is described by two or more tectonic plates moving away from each other.
True
False
15
What is the primary effect that can occur at transform boundaries?
Mountain Ranges
<font size="2">Volcanos</font>
Mid-ocean ridges
Earthquakes
16
Oceanic Plates are thinner and more dense than Continental Plates.
True
False
17
What is the name the is given to the crust and upper-most part of the mantle?
Asthenosphere
Lithosphere
Atmosphere
Mesosphere
18
What is one theory to explain the existence of a Hot Spot like the one under Hawaii?
Converging Plates
Volcanic Activity
A weak spot in the crust
Magma Plumes
