Across
1
Where river meets the sea
6
Height above sea level
7
Seasonal heavy rainfall
8
Physical features of land
9
Steep rock face at edge of land
Down
2
Land surrounded by water on three sides
3
Region between the two tropic lines
4
Largest river in South America
5
Low area between mountains
10
Area where water covers the soil
11
Long-term weather patterns of an area
12
Wearing away of land by water or wind