Across
1
Vast body of salt water
3
Half of the Earth
6
Imaginary line around the middle of Earth
8
Total number of people in an area
9
Land surrounded by water
Down
2
Largest hot desert in the world
4
Mountain that can erupt with lava
5
Landform where river meets the sea
7
Land surrounded by water on three sides
10
Steep rock face at edge of land