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Questions and Answers List

Question	Answer
sudden and violent shaking of the ground, as a result of movements within the earth's crust or volcanic action	Earthquakes
massive slab of solid rock made up of Earth's lithosphere (crust and upper mantle)	tectonic plate
heat-driven cycles that occur in the air, ocean, and mantle caused by a difference in temperature	Convection Currents
Primary waves, are the first waves to arrive at a seismograph.	P-waves
secondary waves, are the second waves to arrive during an earthquake	S-wave
instruments used to record the motion of the ground during an earthquake.	Seismograph
the recording of the ground shaking at the specific location of the instrument	Seismogram