Across
1
Cold treeless Arctic plain
4
Chain or group of islands
5
Land surrounded by water on three sides
6
Seasonal heavy rainfall
10
Where river meets the sea
Down
2
Land surrounded by water
3
Wearing away of land by water or wind
7
Total number of people in an area
8
Long-term weather patterns of an area
9
Mountain that can erupt with lava
11
Landform where river meets the sea
12
Narrow sea inlet between cliffs