Unit 9: DIFFICULT WORDS
Relief: the variations in elevation of an area of the earth’s surface. (Relief map: a map that uses different colours to show the different heights of hills, valleys, etc.)
Plain: a large area of flat land with few trees.
Cliffs: a high, very steep area of rock, especially one next to the sea.
Basin: an area of land from which water flows into a river.
Mountain ranges: a line of mountains or hills.
Cartography: the study and practice of making maps (also can be called mapping).