Across
1
Chain or group of islands
6
Where river meets the sea
7
Region surrounding the North Pole
9
Mountain that can erupt with lava
10
Distance north or south of equator
Down
2
Cold treeless Arctic plain
3
Vast body of salt water
4
Landform where river meets the sea
5
Wearing away of land by water or wind
6
Imaginary line around the middle of Earth
8
One of seven major landmasses
11
Largest ocean on Earth