Impact on Earth's Systems

6. the highest level of groundwater in an area, beneath the Earth's surface
7. The laying down of sediments in a new location
8. a large fire that spreads quickly and destroys forests, grasslands and other areas
9. The breaking down of rock due to water, wind or ice
11. ability of a material to allow water to pass through
12. a type of chemical weathering that appears sometimes as rust
15. a sudden and violent shaking of the ground
17. a long, high wave of water caused by an earthquake or volcanic eruption
18. a spinning column of air with wind speeds up to 300 miles per hour
19. an area of land where all of the groundwater and surface water from the area drains from higher areas to lower areas and into the same body of water
20. The type of weathering of rock into smaller fragments by natural physical agents

1. the sudden and violent discharge of gas, ash, molten rock and other materials
2. water above the Earth's surface
3. This type of weathering occurs when rocks are decomposed, dissolved or loosened by chemical processes
4. The movement of sediment by water, wind, ice or gravity
5. surface land area where water enters an aquifer
10. water beneath the Earth's surface
13. a permeable rock layer than can hold or transport water
14. a violent, usually destructive, natural occurrence
16. a small area defined by its ecology and other environmental characteristics