Across
1
Seasonal heavy rainfall
4
Where river meets the sea
5
Region surrounding the North Pole
6
Steep rock face at edge of land
7
Imaginary line around the middle of Earth
11
Deep narrow valley with steep sides
12
Landform where river meets the sea
Down
2
Region between the two tropic lines
3
Chain or group of islands
8
Narrow sea inlet between cliffs
9
Mountain that can erupt with lava
10
Flat elevated area of land