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what causes tectonic plates to move
convection currents in the mantle
which type of boundary most often causes earthquakes due to sliding plates
transform
where do most volcanoes and earthquakes occur
plate boundaries
what are the two types of crust
oceanic and continental
how do P waves travel
through solids and liquids
Which layer of the earth contains convection currents?
mantle
what kind of plate boundary is the San Andreas fault
Transform
What forms at subduction zones
Volcanoes and trenches
seafloor spreading occurs at what type of boundary
divergent
what is subduction
when one plate sinks below another
what does the movement oof earth's outer core generate
magnetic field
If a continental crust converged with an oceanic crust, what would happen
a subduction zone would form
what is the epicenter of an earthquake
surface above the focus
the part of a volcano that releases lava is the what
vent
what part of the crust is generally newer
ocean
what type of boundary most often causes mountains to form
convergent
What part of a volcano holds molten rock
magma chamber
which type of wave cannot travel through liquid
S wave
which is a result of tectonic plate collision
mountains, ocean trench, or volcano
what is an earthquake focus
point of initial break below the surface (where it actually happened underground)
What is created at a divergent plate boundary
mid ocean ridge, ocean basin, or a rift valley
what type of wave travels fastest during an earthquake
P-wave
what is the correct order of the layers of the earth from surface to center
crust, mantle, outer core, inner core
How do you describe oceanic crust
young, thin, and dense
what is a mid-ocean ridge
underwater mountain at divergent boundary