Across
1
Physical features of land
5
Where river meets the sea
8
Wearing away of land by water or wind
9
Largest river in South America
11
Steep rock face at edge of land
Down
2
Land surrounded by water on three sides
3
Region surrounding the North Pole
4
Seasonal heavy rainfall
6
Body of water surrounded by land
7
Ridge of rock or coral near the surface
10
Deep narrow valley with steep sides