Across
1
Deep narrow valley with steep sides
3
Largest hot desert in the world
4
Landform where river meets the sea
5
Line dividing two countries
6
Raised area of land, smaller than a mountain
9
Seasonal heavy rainfall
Down
1
Tool for finding directions
2
Total number of people in an area
7
Vast body of salt water
8
City that is seat of government
10
Largest ocean on Earth