Matching Pairs Earth ReliefOnline version Relacionar los distintos conceptos con sus definiciones en inglés. by Alfonso Poza 1 Area of land between two mountains. 2 A piece of land completely surrounded by water 3 The undersea extension of a continent that descends gradually to depths of around 400 metres 4 A large bay. It forms the shape of an arc. 5 A large open area of flat land at low altitude 6 A large piece of land surrounded by water on three sides 7 Depressions of the ocean floor that often reaches depths of 6000 metres and sometimes 11000 metres. 8 A flat area of ocean floor, found at depths of between 3000 and 7000 metres. 9 An area of land lower than the surrounding area. Sometimes, a basin is formed from the erosive action of a river. 10 A large underwater mountain range 11 A flat area at high altitude. 12 A natural elevation of the earth's surface rising more or less abruptly to a summit 13 A group of mountains 14 A steep underwater area that links the continental shelf with the ocean floor. 15 A group of islands. 16 The top of a mountain 17 Head of land projecting into a body of water 18 An area of coast where the land curves in Summit Oceanic Ridge Continental Shelf Valley Archipelago Mountain Range Peninsula Continental Slope Mountain Gulf Basin Plain Bay Island Cape Abyssal Plain Marine Trench Plateau