6th grade science questions and answers
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Answers:Frequency of earthquakes means how many earthquakes the area gets. Magnitude means how powerful the earthquake is. An important concept in geology (and physics) is that energy can not be created or destroyed. The energy to cause the earthquake is the radiogenic (radioactive) energy from the center of the Earth that causes the plates to move. The Earthquake releases seismic waves, which are absorbed into the Earth's crust as heat energy. Its the same concept as throwing a pebble into a pond, and watch the ripples from the "epicenter".