Across
1
Total number of people in an area
6
Dry land with little rainfall
9
Imaginary line around the middle of Earth
10
Large natural stream of water
11
Land surrounded by water
12
Half of the Earth
Down
2
Wearing away of land by water or wind
3
Large body of water partly enclosed by land
4
Narrow sea inlet between cliffs
5
Large slow-moving mass of ice
7
Distance east or west of prime meridian
8
One of seven major landmasses