Plate Tectonics

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1.
1 point
Who proposed the idea of sea-floor spreading?
2.
1 point
What type of fault happens at convergent boundaries when the hanging wall moves up, which is backwards from the way in moves at divergent boundaries?
3.
1 point
True or False....New oceanic crust is constantly being created at mid-ocean ridges.
4.
1 point
The middle layer of the earth that makes up most of the Earth's mass is the _____.
5.
1 point
According to Wegener, how many landmasses did all continents once form?
6.
1 point
What is the most common type of divergent boundary?
7.
1 point
A place where one plate is being pushed uner the other plate is known as a _____.
8.
1 point
What type of fault occurs at transform boundaries when rocks move horizontally past one another?
9.
1 point
What did Wegener hypothesize happened to the continents?
10.
1 point
What type of boundary occurs where 2 plates slide past each other horizontally?
11.
1 point
The process by which oceanic plates separate at mid-ocean ridges, and new oceanic crust is formed is known as ____.
12.
1 point
What type of boundary occurs where 2 plates separate?
13.
1 point
The layer of the earth that is made of the crust and the upper mantle is the ____.
14.
1 point
What type of rock deformation is occuring at divergent boundaries where rock is being stretched apart?
15.
1 point
The innermost layer of the earth that is made of mostly iron is the ____.
16.
1 point
The plastic layer of the earth on which the lithosphere moves is the ____.
17.
1 point
What type of rock deformation occurs at convergent boundaries where rock is being squeezed together?
18.
1 point
What type of rock deformation occurs when rock is being bent?
19.
1 point
Scientists think the lithospheric plantes were once joined in one supercontinent known as ____.
20.
1 point
What hypothesis by Alfred Wegener explains why continents seem to fit together like the pieces of a puzzle?
21.
1 point
The lower part of the mantle that makes up the majority of the earth is the ____.
22.
1 point
The solid, dense center of the earth that is made of solid iron is the ____.
23.
1 point
What type of boundary occurs when 2 plates are colliding?
24.
1 point
What type of fault occurs at divergent boundaries when the hanging wall moves down?
25.
1 point
The outermost layer of the earth is known as the ___.
26.
1 point
True or False.....New oceanic crust is constantly being created at subduction zones.