vocabulary

5. big things of frozen water on a mountain
7. any of the world's main continuous expanses of land
9. the spatial study of natural phenomena that comprise the environment
11. an imaginary line around the middle of a planet or other celestial body
12. wetlands that form as rivers empty their water and sediment into another body of water
13. the largest continent in the world
15. a natural feature of the earth's surface.

1. measures distance east or west of the prime meridian.
2. water that flows downhill from the force of gravity
3. the science or practice of drawing maps.
4. an opening in the Earth's crust through which lava, ash, and gases erupt
6. a piece of land almost surrounded by water or projecting out into a body of water.
8. a group of islands.
9. an area of relatively level high ground.
10. the angular distance of a place north or south of the earth's equator
14. land that is controlled by a single government