Across
1
Area where water covers the soil
5
Large natural stream of water
7
Total number of people in an area
8
Deep narrow valley with steep sides
11
Ridge of rock or coral near the surface
Down
2
Line dividing two countries
3
Narrow sea inlet between cliffs
4
Where river meets the sea
6
Large natural elevation of earth
9
Seasonal heavy rainfall
10
Large slow-moving mass of ice
12
Raised area of land, smaller than a mountain