Across
1
Goods sold to another country
4
Low-lying land surrounded by higher ground
5
Raised area of land, smaller than a mountain
6
Cold treeless Arctic plain
7
Large natural elevation of earth
8
Landform where river meets the sea
10
Large area covered with trees
11
Where river meets the sea
Down
2
Distance east or west of prime meridian
3
Area where water covers the soil
6
Region near the equator
7
Seasonal heavy rainfall
9
Vast body of salt water