Across
1
Seasonal heavy rainfall
4
Large natural stream of water
6
Chain or group of islands
8
Body of water surrounded by land
9
Piece of land jutting into the sea
10
One of seven major landmasses
11
Steep rock face at edge of land
Down
2
Cold treeless Arctic plain
3
Region between the two tropic lines
4
Ridge of rock or coral near the surface
5
Area where water covers the soil
7
Land surrounded by water
12
Deep narrow valley with steep sides
13
Mountain that can erupt with lava