Introduction

G earthquakes fossils were another piece of evidence

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Unformatted text preview: d Noticed that the continents fit together like puzzle pieces Alfred Wegner: Proposed that continents move He didn’t know the mechanism Came up with Pangaea (180 million years ago, Pangaea broke up) Not just the continents move, but the giant plates move as well The evidence started to accumulate in the 50s and 60s Most navy sonar is modeled after echolocation The mid- ocean ridge, other areas of trenches The ridges line up with seismic acti...
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