What causes lithospheric plates to move?

convection currents in the mantle

Stationary, they stay in the same place

In sea-floor spreading, the sea floor

spreads apart along both sides of a mid-ocean ridge

What is the ring of fire?

An area of volcanoes and earthquakes surrounding the Pacific Ocean

What occurs at a subduction zone?

Plates converge and one is pushed under and destroyed.

Deep valley on the ocean floor where oceanic crust slowly sinks into mantle

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Plate Tectonics PowerPoint Quiz

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Questions 24

Answers

1
Where do rift valleys form?
at divergent plate boundaries
at subduction zones
at convergent plate boundaries
at transform plate boundaries
2
What is the name of the scientist who first theorized the idea of continental drift?
Marie Tharp
Harry Hess
Alfred Wegener
Alfred Hess
3
Convection currents in the mantle are caused by differences in what?
Density and Composition
Density and Temperature
Composition and Mass
Mass and Temperature
4
What is typically a result of two oceanic plates converging?
Continental Volcanic Arc
Mountain Ranges
Volcanic Island Arc
Rift Valley
5
What causes lithospheric plates to move?
convection currents in the crust
convection currents in the mantle
convection currents in the inner core
waves in the ocean
6
Hot spots are
Constantly disappearing and reappearing
What creates earthquakes
Stationary, they stay in the same place
Always moving around
7
What is typically a result of a continental and oceanic plate converging?
Mountains
Continental Volcanic Arc
Mid-Ocean Ridge
Rift Valley
8
Hypothesis that states that the continents once formed a single landmass then broke apart:
Lithospheric Displacement
Plate Tectonics
Continental Drift
Pangaea Hypothesis
9
Where do convection currents occur?
Outer Core
Lithosphere
Inner Core
Mantle
10
Which type of crust is less dense and thicker?
Oceanic Crust
Continental Crust
11
What kind of plate boundary is shown?
Oceanic-Oceanic Convergent
Divergent Boundary
Mid-Ocean Ridge
Continental-Oceanic Convergent
12
In sea-floor spreading, the sea floor
spreads apart along both sides of a mid-ocean ridge
is subducted at the mid-ocean ridge
spreads apart along the left sides of a mid-ocean ridge
spreads apart along the right sides of a mid-ocean ridge
13
What is the ring of fire?
An area of volcanoes and earthquakes surrounding the Pacific Ocean
A chain of mountains along the coast
An area of hot spots in the Pacific Ocean
Song by Johnny Cash
14
Which of the follow is not evidence of sea-floor spreading?
Paleomagnetism
Mega Volcanoes
Earthquake Patterns
Ages of ocean floor rock
15
Process by which plates tectonics makes new oceanic lithosphere
seafloor spreading
oceanic ridge
magic
rift valley
16
What kind of plate boundary is shown?
Transform
Collision
Convergent
Divergent
17
Where does sea-floor spreading occur?
Mid-Ocean Ridges
Mariana Trench
Magnetic Reversals
Subduction Zones
18
What kind of plate boundary is shown?
Oceanic-Oceanic Convergent
Volcanic Island Arc
Transform Boundary
Divergent Boundary
19
What occurs at a subduction zone?
Plates converge and one is pushed under and destroyed.
Plates slip laterally against one another
Plates converge and form mountains.
Plate diverge apart to form new crust.
20
Deep ocean trench
A large area of flat land elevated high above sea level
Deep valley on the ocean floor where oceanic crust slowly sinks into mantle
Divergent boundary in the middle of the Atlantic Ocean
21
Which scientist used SONAR images to explain the mechanism behind continental drift?
Marie Tharp
Harry Hess
Alfred Wegener
22
What plate boundary is most responsible for earthquakes?
Convergent Boundary
Divergent Boundary
Transform Boundary
23
Continents were once joined together in a single large landmass called what?
Pangaea
Laurasia
Panthalassa
Gondwana
24
Which type of crust will subduct under the other?
Continental
Oceanic

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