1
A stream of water that falls from a high place.
2
A landform with high elevation and high relief.
3
A hill of sand, made and shaped by wind
4
An area of low land between hills or mountains
5
An extremely dry area with little water and few plants
6
An area of densely wooded land
7
A large area of flat land with few trees
8
steep, high wall of rock, earth, or ice
9
A large underground chamber, typically of natural origin, in a hillside or cliff.
10
A small area of land that is higher than the land around it
11
A large body of water surrounded by land
12
Large body of water completely or partly surrounded by land
