Across
1
Chain or group of islands
6
Ridge of rock or coral near the surface
7
Large body of water partly enclosed by land
8
Steep rock face at edge of land
9
Low-lying land surrounded by higher ground
11
Deep narrow valley with steep sides
Down
2
Line dividing two countries
3
Large natural elevation of earth
4
Land surrounded by water on three sides
5
Ocean between Americas and Europe/Africa
10
Mountain that can erupt with lava