hard
does seafloor spreading cause magma to rise or fall first
rise
what were the continents called in Pangea
supercontinents
where is the asthenosphere
mantle
what boundary formed mountains and volcanoes
convergent
what is an example of convection currents?
boiling water
does seafloor spreading only happen in the ocean
no it can happen with volcanoes,earth,or ocean
what made Pangea happen
convection currents
where is the lithosphere
crust and upper mantle
what boundary creates an earthquake
transform
what is seafloor spreading also known for
mid ocean ridge
what is the crust and mantle
crust=outermost layer of earth
mantle=the layer between the crust and the core
when did Pangea happen
200 million years ago
which is on the bottom
A- lithosphere
B- asthenosphere
B- Asthenosphere is on the bottom of the lithosphere
what boundary creates magma to rise and seafloor spreading to happen
divergent
where do convection currents happen
mantle
what boundary has plates going opposite sides
divergent
what is Pangea
when supercontinents where all together
what are the two kinds of crust
oceanic and continental
how many boundaries are their
3
which boundarie is sliding past each other
transform
what is a tectonic plate
a tectonic plate is a big slab of the earths crust and upper mantle
what is an earthquake?
sudden shaking of the ground caused by movement in the crust
what are plate boundaries
areas where plates interact
what are the boundaries called
convergent
divergent
transform
what boundary has plates going above and underneath each other
convergent