1) a natural wide flow of fresh water across the land into the sea, a lake a) river b) island c) waterfall 2) an area of low land between hills or mountains, a) forest b) valley  c) hill d) mountain 3) water flows over the edge of a steep, high cliff in hills or mountains, and falls into a pool below a) river b) forest c) waterfall 4) a piece of land surrounded by water. a) forest b) island c) field 5) an area of land, used for growing crops or keeping animals, a) forest b) field c) grass d) valley 6) a large area of land covered with trees and plants, a) field b) grass c) forest 7) a raised part of the earth's surface, much larger than a hill a) hill b) mountain c) valley

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