Across
1
Total number of people in an area
6
Largest hot desert in the world
8
Land surrounded by water on three sides
11
Land surrounded by water
Down
2
Mountain that can erupt with lava
3
Largest ocean on Earth
4
Large natural elevation of earth
5
Half of the Earth
7
Flat grassland in tropical regions
9
Low area between mountains
10
Body of water surrounded by land
12
Large natural stream of water