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Pangea, Seafloor Spreading, & Plate tectonics Flashcards | StudBud
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Pangea, Seafloor Spreading, & Plate tectonics
Pangea, Seafloor Spreading, & Plate tectonics
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1
What is Pangea?
The continents were like puzzles pieces
none of the aboven
A super-continent
A theory that plates move
2
What are some evidence of continental drift included what?
dirt
ancient Fossils
water
planets
3
What Causes Plate Tectonics?
Volcanoes
Weather
Earthquakes
Convection
4
When oceanic Plate slides under continental plate what is this called?
Mid-Atlantic Ridge
Convergent Boundary
Subduction Zone
Seafloor Spreading
5
Which of the following is not plate boundary?
Transform
Tectonic
Divergent
Convergent
6
Thickness if sediment layer on the ocean floor ___ as you get further away from the mid-ocean ridge.
increases
decreases
7
How does plate tectonics cause major geological events?
They cause major events by when they come out of the ground to see the moon
They move at random times because of how hot or cold it is
They rest upon the convecting mantle which causes them to move.
They rest in the crust and moving objects obove ground causes it to move.
8
What evidence does NOT support that the continents used to form one supercontinent, Pangea
same species of fossils found in S America and Africa
The continents fit together like puzzle pieces
We saw the supercontinent with our own eyes
Tropical plant fossils found in the Arctic
9
Who proposed the theory of Pangea?
Charles Darwin
Alfred Wallace
Alfred Wegener
Abraham Lincoln
10
Was the Theory of Continental Drift Accepted?
Yes
No
11
do plate tectonics cause earthquakes
False
True
12
What are Plate Boundaries?
Where two or more of Earth’s lithospheric plates meet.
Kahoot!!
The place here you put your plates in the dishwasher
Where two or more of Mar's lithospheric plates meet.
13
What drives the process of plate tectonics, the current explanation for continental drift
gravity
unequal heat distribution
earthquakes
wind currents
14
What boundary created the Mid - Ocean Ridge
Divergent
Convergent
Transform
Transvergent
15
What type of Plate Boundary is this?
Transform Fault
Convergent (ocean - ocean)
Divergent (cont - cont)
Divergent (ocean - ocean)
16
Deposits of these in Antarctica are evidence of continental drift?
delta
sand
shells
sediments
17
How did Pangea break up
Tectonic plates
Meteor
Volcano
Earth Quake
18
What does a transform plate boundary make?
trenches
volcanoes
earthquakes
seafloor spreading
19
The process of ___continually adds new crust to the ocean floor along the mid-ocean ridge
seafloor spreading
convection
plate tectonics
continental drift
20
The lithosphere includes
Mantle
Crust and upper mantle
Core
Crust
21
Which plate boundary collides?
Divergent boundary
Convergent boundary
Transform boundary
22
What is the lithosphere
The ocean
Where tectonic plates are
Presents
The crust and mantle
23
How many continents did Pangea consist of?
7
8
9
10
24
Which two theories did the Theory of Plate Tectonics come from?
Continental Split and Seafloor Rising
Continental Drift and Seafloor Rising
Continental Drift and Seafloor Spreading
Continental Spreading and Seafloor Spreading
25
Give examples of divergent plate boundaries
Mid-Ocean Ridge
Mid-Atlantic Ridge
Iceland
Great African Rift Valley
26
Is plate tectonics a theory?
False
True
27
What happens at a divergent plate boundary?
Two plates move apart from each other
The plates suddenly transform into hardrock
The plates are transformed.
Two plates move closer together
28
At a transform fault plate boundary, the plates:
Push together
Spread apart
Move past each other inopposite directions.
Move past each other in the same direction.
29
Mountains are formed because of this plate boundary
Divergent
Convergent
Transfrom
30
The asthenosphere is
gaseous
solid
molten
31
In the 1960s, who suggested the theory of Seafloor Spreading to explain the ridges. HINT-section 2
Harry Hess
Bob Ross
Spongebob
Dr.Phil
32
What type of Plate Boundary Is This?
Reverse
Convergent
Transform
Divergent
33
The Theory of Plate Tectonics explains why we have volcanoes and earthquakes.
True
False
34
Plate tectonics move at the speed of a fingernail
False
True
35
What is true of plate tectonics?
They are COOL. Duh..
They are caused by earthquakes
They are constantly moving
