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Plate tectonics and continental drift Flashcards | StudBud
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Plate tectonics and continental drift
Plate tectonics and continental drift
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#platetectonics #alfredwegener #continentaldrift
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Answers
1
Mid-ocean ridges occur at which type of plate boundary?
transform
divergent
convergent
subduction zones
2
The theory that explains why and how continents move is called..
mid ocean ridges
continental drift
sea floor spreading
plate tectonics
3
What boundary is in this picture?
convergent
transform
can't tell
divergent
4
What plate boundary is at the San Andrea's fault?
convergent
divergent
a subduction zone
transform
5
Wegener's hypothesis of continental drift was finally confirmed by which?
fossils on multiple continents
the shape of the continents
similar mountain ranges
evidence for sea-floor spreading
6
The theory that says the continents have moved and that they used to be connected is known as
continental drift
tectonics
paleomagnetism
Pangaea
7
What is the pacific ring of fire?
a mid-ocean ridge
a rift valley
a chain of islands
a zone of active volcanoes
8
At which type of boundary do the worst earthquakes occur?
convergent
transform
all of the above
divergent
9
What is subduction?
something that happens at transform boundaries.
when plates break
when plates divide
when an oceanic plate goes under a continental plate.
10
Which of the following is NOT part of the evidence for continental drift?
the continents fitting together like puzzle pieces.
sightings of a dinosaur
fossil and mountain alignment
sea-floor spreading
11
The splitting of Pangaea into two continents is known as the
slab pull theory
convection current theory
supercontinent cycle
accretion theory
12
What allows the plate tectonics to move?
Convection currents in the mantle
The Earths' moon
the Earths' core
we don't have a clue
13
What's the name of the supercontinent? Could this happen again?
Pangaea, Yes
Panthalassa, No
Panthalassa, Yes
Pangaea, No
14
The Himalaya mountains are an example of what?
a subduction zone
a fracture zone
a rift valley
a collision between plates
15
Which of the following is NOT a type of convergent boundary?
oceanic-oceanic
subduction-subduction
continental-continental
oceanic-continental
16
What's in this picture?
subduction
sea-floor spreading
divergent boundary
all of the above
17
What event happened approximately 200 million years ago?
South America was named a continent.
pangaea came together
Alfred Wegener was born
Pangaea began to break apart into smaller continents
18
Which of the following was proven after Wegener's death?
there are fossils in Antarctica
the mesosaurus was on multiple continents
all of the above
sea-floor spreading
19
tectonic plates are blocks of...
continents
mantle
lithosphere
asthenosphere
20
Who was the first to come up with the idea of continental drift?
Dr. Hess
all of the above
Angelo Wegener
Alfred Wegener
21
What happens when an oceanic plate collides with a continental plate?
subduction occurs
nothing happens
a mid ocean ridge forms
mountains form
22
What occurs at a transform boundary?
plates converge
plates slide past eachother
plates collide into each other
plates move away from each other
23
Which word describes the plastic-like layer in Earth below the crust?
lithosphere
mesosphere
asthenosphere or mantle
core
24
What can we infer about the ocean floor closest to a mid-ocean ridge?
none of the above
its the oldest part of the ocean floor
Its younger than whats further away from the ridge
its heavier than all other ocean floor
25
What was the major problem with Wegeners' theory?
He couldn't explain how the continents moved
all of the above
He wasn't a real scientist
He was crazy
