Across
1
Where river meets the sea
4
Total number of people in an area
5
Long-term weather patterns of an area
7
Vast body of salt water
8
Region surrounding the North Pole
10
Largest hot desert in the world
12
Narrow sea inlet between cliffs
13
Steep rock face at edge of land
Down
2
Deep narrow valley with steep sides
3
Cold treeless Arctic plain
5
Piece of land jutting into the sea
6
Ocean between Americas and Europe/Africa
9
Ridge of rock or coral near the surface
11
Large natural stream of water