Across
1
Wearing away of land by water or wind
4
Landform where river meets the sea
7
Largest river in South America
8
Low-lying land surrounded by higher ground
10
Goods sold to another country
11
Raised area of land, smaller than a mountain
Down
2
Large slow-moving mass of ice
3
One of seven major landmasses
5
Large natural elevation of earth
6
Total number of people in an area
9
Distance north or south of equator