word | | Terrain |
| reefs | Northern Mariana Islands | southern islands are limestone with level terraces and fringing coral reefs; northern islands are volcanic |
| reefs | Palau | varying geologically from the high, mountainous main island of Babelthuap to low, coral islands usually fringed by large barrier reefs |
| reefs | Saint Barthelemy | hilly, almost completely surrounded by shallow-water reefs, with 20 beaches |
| reefs | Seychelles | Mahe Group is granitic, narrow coastal strip, rocky, hilly; others are coral, flat, elevated reefs |
| reefs | United States Pacific Island Wildlife Refuges | low and nearly level sandy coral islands with narrow fringing reefs that have developed at the top of submerged volcanic mountains, which in most cases rise steeply from the ocean floor |
| region | Barbados | relatively flat; rises gently to central highland region |
| region | Nepal | Tarai or flat river plain of the Ganges in south, central hill region, rugged Himalayas in north |
| region | Paraguay | grassy plains and wooded hills east of Rio Paraguay; Gran Chaco region west of Rio Paraguay mostly low, marshy plain near the river, and dry forest and thorny scrub elsewhere |
| region | Slovenia | a short coastal strip on the Adriatic, an alpine mountain region adjacent to Italy and Austria, mixed mountains and valleys with numerous rivers to the east |
| regions | Russia | broad plain with low hills west of Urals; vast coniferous forest and tundra in Siberia; uplands and mountains along southern border regions |
| relatively | Barbados | relatively flat; rises gently to central highland region |
| relatively | British Virgin Islands | coral islands relatively flat; volcanic islands steep, hilly |
| relatively | Guam | volcanic origin, surrounded by coral reefs; relatively flat coralline limestone plateau (source of most fresh water), with steep coastal cliffs and narrow coastal plains in north, low hills in center, mountains in ... |
| relief | Rwanda | mostly grassy uplands and hills; relief is mountainous with altitude declining from west to east |
| remainder | Arctic Ocean | ... landmasses; the ocean floor is about 50% continental shelf (highest percentage of any ocean) with the remainder a central basin interrupted by three submarine ridges (Alpha Cordillera, Nansen Cordillera, and Lomonosov Ridge |
| remainder | France | metropolitan France: mostly flat plains or gently rolling hills in north and west; remainder is mountainous, especially Pyrenees in south, Alps in east French Guiana: low-lying coastal plains rising to hills ... |
| result | Saint Helena | the islands of this group result from volcanic activity associated with the Atlantic Mid-Ocean Ridge Saint Helena: rugged, volcanic; small scattered plateaus and plains Ascension: surface covered by lava flows and ... |
| results | Indian Ocean | ... in the northern Indian Ocean; low atmospheric pressure over southwest Asia from hot, rising, summer air results in the southwest monsoon and southwest-to-northeast winds and currents, while high pressure over ... |
| Reunion | France | ... Grande-Terre is low limestone formation; most of the seven other islands are volcanic in origin Martinique: mountainous with indented coastline; dormant volcano Reunion: mostly rugged and mountainous; fertile lowlands along coast |
| reversal | Indian Ocean | ... surface dominated by counterclockwise gyre (broad, circular system of currents) in the southern Indian Ocean; unique reversal of surface currents in the northern Indian Ocean; low atmospheric pressure over southwest Asia from ... |
| Rhine | Liechtenstein | mostly mountainous (Alps) with Rhine Valley in western third |
| rich | Argentina | rich plains of the Pampas in northern half, flat to rolling plateau of Patagonia in south, rugged Andes along western border |
| rich | Morocco | northern coast and interior are mountainous with large areas of bordering plateaus, intermontane valleys, and rich coastal plains |
| rich | Serbia | extremely varied; to the north, rich fertile plains; to the east, limestone ranges and basins; to the southeast, ancient mountains and hills |