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PPT
NASA

Nasa: Slr and Gps (And Plate Tectonics and Earthquakes) [Pdf]

For Students 9th - 10th
This slideshow explains how satellites are used to measure the movement of tectonic plates.
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Handout
Other

Garmin: What Is Gps?

For Students 9th - 10th
This page offers answers to frequently asked questions regarding GPS.