Across
1
Cold treeless Arctic plain
2
Where river meets the sea
5
Raised area of land, smaller than a mountain
6
Seasonal heavy rainfall
9
Land surrounded by water
10
Deep narrow valley with steep sides
Down
2
Wearing away of land by water or wind
3
Distance east or west of prime meridian
4
Physical features of land
7
Large body of water partly enclosed by land
8
Goods sold to another country
11
Largest hot desert in the world