Geography

3. A vast body of saltwater covering most of the Earth's surface
6. A high, steep landform that rises abruptly from the surrounding land
7. An arid land with little precipitation and few plants
9. A sudden movement of the Earth's crust caused by the release of built-up stress along a fault
10. A deep, narrow valley with steep sides
12. A fertile spot in a desert where water is found
13. A piece of land, smaller than a continent, completely surrounded by water
14. A group of many islands

1. A large body of ice that moves slowly over land
2. A steep fall of water from a height, often over a rocky cliff
4. A mountain with a hole in the top from which hot magma, ash, and gas may erupt
5. A body of water that is partly enclosed by land
8. A piece of land that is mostly surrounded by water but connected to a larger landmass
11. A long, flowing body of water that usually empties into a sea or ocean
15. A flat, elevated landform that rises sharply above the surrounding area