11. When the cold, dense air drains southward it becomes a shallower wedge beneath the milder air of the temperate zone. 12. Pressurized air could have drained the hull to make it rise. |
11. When the cold, dense air drains southward it becomes a shallower wedge beneath the milder air of the temperate zone. 12. Pressurized air could have drained the hull to make it rise. |