Across
- 4. Dense area of trees, plants, and wildlife, often with a variety of ecosystems
- 6. Natural underground hollow or passage, often with unique geological formations
- 9. Vast, treeless Arctic or Alpine region characterized by low temperatures and a short growing season
- 10. Large expanse of flat or rolling grassland, typically found in temperate regions
- 13. Opening in the Earth's crust through which molten lava, ash, and gases are expelled
- 14. Atoll Ring-shaped coral reef or series of islets surrounding a central lagoon
- 15. Grassy plain characterized by scattered trees and supporting a range of wildlife
- 16. Reef Underwater ecosystem formed by colonies of coral polyps, supporting a diverse array of marine life
Down
- 1. Arid region with minimal vegetation, characterized by sand dunes, rocky landscapes, or vast expanses of barren land
- 2. Large landform that rises steeply above its surroundings, often with rocky terrain and snow-capped peaks
- 3. Natural flowing watercourse, often originating from a source and emptying into a larger body of water
- 5. A cascade of water that flows from a height, often creating a picturesque scene
- 7. Deep and narrow valley with steep sides, usually formed by erosion from a river or other natural forces
- 8. Area where water covers the soil, such as marshes, swamps, or bogs, supporting diverse plant and animal life
- 11. Large mass of ice that moves slowly down a slope or valley, shaping the surrounding landscape
- 12. Sandy or pebbly shore by the ocean or a lake, with waves and coastal features