Across
1
One of seven major landmasses
5
Narrow sea inlet between cliffs
7
Low-lying land surrounded by higher ground
8
Ridge of rock or coral near the surface
9
Cold treeless Arctic plain
12
Low area between mountains
Down
1
Piece of land jutting into the sea
2
Body of water surrounded by land
3
Vast body of salt water
4
Flat elevated area of land
6
Large natural stream of water
9
Region between the two tropic lines
10
Total number of people in an area
11
Wearing away of land by water or wind