Across
1
Total number of people in an area
5
Low-lying land surrounded by higher ground
6
Distance east or west of prime meridian
7
Land surrounded by water
9
One of seven major landmasses
10
Largest hot desert in the world
12
Low area between mountains
Down
1
Largest ocean on Earth
2
Large body of water partly enclosed by land
3
Body of water surrounded by land
4
Large area covered with trees
8
Distance north or south of equator
11
Where river meets the sea