Across
1
Line dividing two countries
4
Tool for finding directions
5
Large natural elevation of earth
6
Cold treeless Arctic plain
9
Largest hot desert in the world
11
Steep rock face at edge of land
13
Flat grassland in tropical regions
14
Region near the equator
Down
1
Low-lying land surrounded by higher ground
2
Where river meets the sea
3
Wearing away of land by water or wind
7
Chain or group of islands
8
Largest ocean on Earth
10
Body of water surrounded by land
12
Flat elevated area of land