Mantle
What are Earth's Compositional Layer?
Core, Mantle, Crust
List 3 type of Convergent boundaries
Oceanic-Oceanic, Continental- continental, Oceaninc-Continenatl
Which convergent boundary does not have a subduction zone?
Continental- continental
What is the age of Oceanic crust?
a) the same age as continental crust
b) younger than continental crust
c) older than continental crust
d) science has never determined the age
B) Younger than continental crust
Which is Not a force causing plates to move?
a) ridge pull
b) slab pull
c) volcanism
d) convection
C) volcanism
The weight of a subducting plate helps pull it into a subduction zone in which process?
a) slab pull
b) Ridge pull
c) Slab Push
D) Convection
a) Slab Pull
What rock type is produced when magma solidifies?
Igneous rock
What process creates deep-sea trenches?
Subduction
How fast do plates move relative to each other?
a) millimeters/ day
b) centimeters/ year
c) meters/ year
d) centimeters/ day
b) centimeters/ year
What are Earth's Structural Layers?
Inner Core, Outer Core, Mesosphere, Asthenosphere, Lithosphere
Define Continental drift
Wegner's Hypothesis
Define Seafloor Spreading
a theory that explains how new oceanic crust is formed at ocean ridges
Define Tectonic plates
huge pieces of crust and rigid upper mantle that fit together at their edges to cover earth' surface
Define Divergent Boundary
regions where two tectonic plates are moving towards apart
Define Convergent Boundary
regions where two tectonic plates are moving towards each other
At which tectonic plate boundary do plates slide horizontally past each other?
a) transform boundary
b) divergent boundary
c) oceanic-oceanic boundary
d) continental- continental boundary
a) transform boundary
Which of the following landforms results from divergence of continental crust?
a) earthquake
b) a mountain range
c) a rift valley
d) a deep-sea trench
c) a rift valley
Oceanic curst is made mostly of _____
basalt
Where are most divergent boundaries found?
on the seafloor
What is the landform that results from divergence of continental crust?
a rift valley
what is thought to be the driving mechanism of plate movement?
Convection currents in the mantle
How are Convection currents set in motion?
slab push and ridge pull
What is the process called when one plate is forced beneath another at a convergent plate boundary?
Subduction
What is created at a continental-continental boundary?
A mountain range
Pangea was an ancient supercontinent made up of?
all of earths continents