Across
1
Steep rock face at edge of land
2
Flat elevated area of land
4
Cold treeless Arctic plain
5
Low-lying land surrounded by higher ground
7
Large natural stream of water
Down
1
Piece of land jutting into the sea
3
Largest ocean on Earth
6
Raised area of land, smaller than a mountain
8
Land surrounded by water
9
Ridge of rock or coral near the surface
10
Goods sold to another country
11
Large slow-moving mass of ice