Across
1
Narrow sea inlet between cliffs
3
Land surrounded by water on three sides
4
Deep narrow valley with steep sides
5
Total number of people in an area
7
One of seven major landmasses
8
Large natural stream of water
10
Largest hot desert in the world
Down
2
Large natural elevation of earth
4
Steep rock face at edge of land
6
Where river meets the sea
9
Half of the Earth
11
Seasonal heavy rainfall
12
Tool for finding directions
13
Line dividing two countries