Across
- 3. Multiple mountain tops
- 4. Steep valley carved by rivers
- 7. Slow-moving marshy stream
- 9. Man-made water body
- 11. Periodic sea level changes
- 14. Spiraling fluid motion
- 18. Dense wooded areas
- 19. Marsh or swamp region
- 21. Grasslands with scattered trees
- 24. Narrow passage of water
- 25. Fertile spot in desert
- 27. Relating to volcanoes
- 29. Open grassy lands
- 30. Water near shore
Down
- 1. Process of land wearing away
- 2. Small narrow gorge
- 5. Recessed rocky area
- 6. Depression from impact or eruption
- 8. Land reclaimed from water
- 10. Treeless Arctic plains
- 12. Vast grasslands
- 13. Small flowing stream
- 15. Dry barren regions
- 16. Related to glaciers
- 17. Low wetland region
- 20. Land formed by river deposition
- 22. Dry stream bed
- 23. Flowing small river
- 26. Land inclining downwards
- 28. Northern forest biome
