JBTC6.1

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Notes 6.1

 * topography-** the shape of the land
 * elevation-** the point above the Earth's surface above sea level
 * relief-** the difference in elevation between the highest and lowest part of an area
 * landform-** a kind of topography that forms the Earth's surface
 * landfom region-** a large piece of land that has similar topography
 * plain-**