Across
1
Deep narrow valley with steep sides
3
Half of the Earth
4
City that is seat of government
5
Height above sea level
10
Chain or group of islands
11
Large natural stream of water
Down
1
Steep rock face at edge of land
2
Large area covered with trees
6
Goods sold to another country
7
Land surrounded by water on three sides
8
Low-lying land surrounded by higher ground
9
Wearing away of land by water or wind