Geography

2. a piece of land completely surrounded by water
5. the salty water that covers a large part of the surface of the earth
8. a very large area of sea
9. a large hole in the side of a hill, cliff, or mountain
10. a large area of water surrounded by land and not connected to the sea
11. an area of low land between hills or mountains, often with a river running through it
12. a tropical forest in which trees and plants grow very closely together
13. an area of sand or small stones near the sea

1. water, especially from a river or stream, dropping from a higher to a lower point
3. a natural wide flow of fresh water across the land into the sea, a lake
4. a raised part of the earth's surface, much larger than a hill
6. a large area of land covered with trees and plants
7. an area, often covered with sand or rocks, where there is very little rain and not many plants
11. a mountain with a large, circular hole at the top through which lava
14. an area of land that is higher than the surrounding land