Across
1
Ridge of rock or coral near the surface
4
Goods brought in from another country
5
Piece of land jutting into the sea
9
Land surrounded by water on three sides
10
Mountain that can erupt with lava
11
Cold treeless Arctic plain
12
Narrow sea inlet between cliffs
Down
2
Chain or group of islands
3
Half of the Earth
6
Vast body of salt water
7
Land surrounded by water
8
Line dividing two countries