Across
1
Large natural elevation of earth
6
Piece of land jutting into the sea
7
Wearing away of land by water or wind
8
Chain or group of islands
9
One of seven major landmasses
12
Area where water covers the soil
Down
2
Large slow-moving mass of ice
3
Largest river in South America
4
Total number of people in an area
5
Physical features of land
10
Low area between mountains
11
Distance east or west of prime meridian