Across
1
Where river meets the sea
4
Cold treeless Arctic plain
5
Region between the two tropic lines
6
Largest ocean on Earth
7
Low area between mountains
9
Visual representation of an area
11
Line dividing two countries
Down
2
Largest hot desert in the world
3
Piece of land jutting into the sea
4
Physical features of land
6
Total number of people in an area
8
Mountain that can erupt with lava
10
Land surrounded by water