remains of once living organisim preserved in layers of sediment
sediment that is deposited horizontally in layers
earth's lithosphere is broken up into....
a huge ocean wave caused by an earthquake
this is produce by an earthquake and it travels from the focus
a thick layer of dense rock below Earth's crust
when magma flows up and fills the space at many divergent boundaries what occurs
made up of earth's crust and upper mantle
the place where rock first begins to move during an earthquake is called the...
the thin outer layer of the earth
the hypothosis that states the continents were once together called pangea
earthquakes and volcanoes often occur near...
the_____of an earthquake is the spot on earth's surface directly over the place where rock began to move along the fault
because tectonic plates are constantly being created and destroyed the____are relitivley young
type of fossil with animal foot prints
p waves, primary waves
these are the fastest travling waves. these waves have
ring of fire
the areas along the pacific ocean where volcanic activity and earthquakes occur
when plates collide together creating fold mountins, volcanoes, and earthquakes
when plates spread apart creating sea-floor spreading, mid ocean ridges, earthquakes, volcanoes, fault block mountains, and rift valleys
transform fault boundaries
when two plates rub against each other creating earthquakes, and mid ocean ridges