Across
- 6. Sudden movement of soil and rock
- 9. Unwanted materials
- 11. system for circulating air
- 12. Energy sources like wind and solar
- 13. Transparent material
- 14. Design of buildings
- 16. wall system
Down
- 1. structure spanning obstacles
- 2. Access between floors
- 3. Angle of terrain
- 4. type of soil
- 5. support for bridges
- 7. Foundation material
- 8. support structure for buildings
- 10. exterior of a building
- 15. Vertical support