geography Test
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| A. it is based of observation, measures the intensity. measured on a scale 1-12, measured by people, you have to be there to measure itB. is based on accurate measurments,measures the magnitude of an earthquake, measured on a scale from 1-9, measured by a seismograph, you do not have to be there to measure it.C. mercalli scale and Richter scaleD. indo-Australian and the Eurasian plateE. collision plate boundaries occur when two continental plates move towards eachotherF. north american plate and the pacific plateG. conservative plate boundaries is when two plates move side by side H. hot spots are not found on plate boundaries, but can be in a middle of a plate. a hot plume rising from the center of the earth melts through the plate above creating a volcano. the plate continues to move over the plume. this creates a line of volcanoesI. when continental plate meets a continental plate neither can subduct the other because they both have the same density. the rocks crumble together to make massive mountain chains like the himalayasJ. north american and Eurasian plateK. oceanic crust is denser than continental crust so the continental crust forces the oceanic crust underneath it. this is a process called subduction. at the subduction zone a deep sea trench is formed where the plate is being forced downwards.L. there can never be any gaps on earth so when the plates move apart magma rises from the mantle and solidifies in the space, this happens one the sea floor and it is called sea floor spreadingM. pacific plate and the eurasianN. convergent plate boundary occur what an oceanic plate is forced under a continental plateO. when plates move along side each other in the opposite direction , earth quakes occur, the edges are all jagged, this makes the pressure to build up within the cracks, making really powerful earthquakes |
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Created by:
jack rowlands
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