Across
1
Distance north or south of equator
5
Ocean between Americas and Europe/Africa
7
Cold treeless Arctic plain
8
Wearing away of land by water or wind
9
Large natural stream of water
12
Chain or group of islands
Down
2
Height above sea level
3
Largest ocean on Earth
4
Dry land with little rainfall
6
Flat elevated area of land
10
Low-lying land surrounded by higher ground
11
Vast body of salt water