Across
1
Largest hot desert in the world
5
Ocean between Americas and Europe/Africa
6
Large natural stream of water
7
Line dividing two countries
8
Largest river in South America
9
Large natural elevation of earth
10
Vast body of salt water
12
Piece of land jutting into the sea
Down
2
Chain or group of islands
3
Imaginary line around the middle of Earth
4
Low area between mountains
11
Total number of people in an area
13
One of seven major landmasses