| STRATOSPHERE | The atmospheric layer lying between the troposphere and the mesosphere (12) |
| THERMOSPHERE | Atmosphere layer lying between the mesosphere and the exosphere (12) |
| STRATOSPHERIC | Relating to the atmospheric layer between the troposphere and mesosphere (13) |
| TURKMENISTAN | Republic lying between the Caspian Sea and Afghanistan (12) |
| CIRROSTRATUS | Cloud type forming a thin hazy layer in the upper troposphere, typically at altitudes of 6-13km (20,000-43,000 ft) (12) |
| STRATOPAUSE | Level of the atmosphere forming the boundary between the stratosphere and the mesosphere, around 30 miles above sea level (11) |
| LAYERS | The troposphere, stratosphere and mesosphere, for the Earth's atmosphere |
| USTYURT | Plateau in Uzbekistan and Kazakhstan, lying between the Aral Sea and the Amu Darya river delta in the east and the Mangyshlak (Tupqarghan) Plateau and the Kara-Bogaz-Gol (Garabogazkol; an inlet of the |
| IONOSPHERE | Layer of the earth's atmosphere that lies above the mesosphere (10) |
| YUCATAN | A northeastern projection of Central America, lying between the Gulf of Mexico to the west and north and the Caribbean Sea to the east. (7) |
| KAMCHATKA | Peninsula in far eastern Russia, lying between the Sea of Okhotsk on the west and the Pacific Ocean and Bering Sea on the east. (9) |
| AUSTRALIA | The smallest of today's continents and one of the largest countries on Earth, lying between the Pacific and Indian oceans in the Southern Hemisphere. (9) |
| LOWERMOST | Like the troposphere, among atmospheric layers |
| ADRIATICSEA | An arm of the Mediterranean lying between the Italian and the Balkan peninsulas (8,3) |
| DARDANELLES | The strait lying between the Aegean and the Sea of Marmara (11) |
| MANTLE | Part of the earth's interior lying between the crust and the core, believed to consist chiefly of silicate rock (6) |
| SARGASSO | Part of the North Atlantic, lying between the West Indies and the Azores, notorious for its floating seaweed (8,3) |
| SEA | Part of the North Atlantic, lying between the West Indies and the Azores, notorious for its floating seaweed (8,3) |
| TUNDRA | A vast, treeless zone lying between the ice cap and the timber line of North America and Eurasia (6) |
| SLOUGHOFDESPOND | Deep bog lying between the City of Destruction and the Wicket Gate in John Bunyan's The Pilgrim's Progress (1678) (6,2,7) |
