| A | B |
|---|
| Ring of Fire | a zone of volcanoes around the Pacific Ocean |
| archipelago | a group of islands |
| delta | a soil deposit at a river's mouth, usually triangle-shaped |
| gulf | a large area of ocean partly surrounded by land |
| island | land completely surrounded by water |
| isthmus | a narrow strip of land connecting two larger land areas |
| mountain range | a row of connected mountains |
| peninsula | land surrounded by water on three sides |
| plateau | an area of high, flat land |
| strait | a narrow body of water between two larger bodies of water |
| tributary | a river or stream that flows into a larger river |
| valley | low land between mountains or hills |
| glacier | large, slow-moving mass of ice |
| fresh water | covers about 3 percent of the earth; most of it is frozen in glaciers |
| salt water | covers about 97% of the earth; found in oceans and seas |
| Pacific Ocean | largest ocean |
