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19-1
Physical Features of Africa South of the Sahara
Question | Answer |
---|---|
escarpment | steep cliff at the edge of a plateau with a lowland area below |
rift valley | area of low relief flanked by highland regions that is formed by the moving apart of two of the Earth's tectonic plates |
gorge | like canyon, a steep-sided valley formed when a river cuts through land that is being lifted upward |
industrial diamond | diamond used to make drills saws, or grinding tools to process other materials rather than as a gemstone |
series | arranged in an order and alike in some way |
principal | main or primary |