word | | Terrain |
| Martinique | France | ... Grande-Terre is low limestone formation; most of the seven other islands are volcanic in origin Martinique: mountainous with indented coastline; dormant volcano Mayotte: generally undulating, with deep ravines and ancient volcanic ... |
| massif | Heard Island and McDonald Islands | Heard Island - 80% ice-covered, bleak and mountainous, dominated by a large massif (Big Ben) and an active volcano (Mawson Peak); McDonald Islands - small and rocky |
| Mawson | Heard Island and McDonald Islands | Heard Island - 80% ice-covered, bleak and mountainous, dominated by a large massif (Big Ben) and an active volcano (Mawson Peak); McDonald Islands - small and rocky |
| Mayotte | France | ... of the seven other islands are volcanic in origin Martinique: mountainous with indented coastline; dormant volcano Mayotte: generally undulating, with deep ravines and ancient volcanic peaks Reunion: mostly rugged and mountainous; fertile ... |
| McDonald | Heard Island and McDonald Islands | Heard Island - 80% ice-covered, bleak and mountainous, dominated by a large massif (Big Ben) and an active volcano (Mawson Peak); McDonald Islands - small and rocky |
| McMurdo | Antarctica | ... of southern Victoria Land, Wilkes Land, the Antarctic Peninsula area, and parts of Ross Island on McMurdo Sound; glaciers form ice shelves along about half of the coastline, and floating ice shelves ... |
| mean | Southern Ocean | ... narrow and unusually deep, its edge lying at depths of 400 to 800 m (the global mean is 133 m); the Antarctic icepack grows from an average minimum of 2.6 million sq ... |
| merge | Nigeria | southern lowlands merge into central hills and plateaus; mountains in southeast, plains in north |
| merges | Tunisia | mountains in north; hot, dry central plain; semiarid south merges into the Sahara |
| merging | United Arab Emirates | flat, barren coastal plain merging into rolling sand dunes of vast desert wasteland; mountains in east |
| meters | Antarctica | ... 98% thick continental ice sheet and 2% barren rock, with average elevations between 2,000 and 4,000 meters; mountain ranges up to nearly 5,000 meters; ice-free coastal areas include parts of southern ... |