Across
- 1. A mountain or hill, typically conical, having a crater or vent through which lava and gases are erupted.
- 4. A piece of land surrounded by water.
- 6. A ridge of jagged rock, coral, or sand just above or below the surface of the sea.
- 8. A cascade of water falling from a height, formed when a river or stream flows over a precipice.
- 10. A large area covered chiefly with trees and undergrowth.
Down
- 2. A very large expanse of sea, particularly one of the five oceans.
- 3. A large natural stream of water flowing in a channel to the sea, a lake, or another river.
- 5. A barren area of landscape where little precipitation occurs and living conditions are hostile for plant and animal life.
- 7. A large underground chamber, typically of natural origin, in a hillside or cliff.
- 9. A large natural elevation of the earth's surface.