Across
1
Region between the two tropic lines
3
Area where water covers the soil
6
Line dividing two countries
9
Cold treeless Arctic plain
10
Total number of people in an area
13
Wearing away of land by water or wind
Down
2
Goods sold to another country
4
Narrow sea inlet between cliffs
5
Body of water surrounded by land
7
Physical features of land
8
Mountain that can erupt with lava
11
Deep narrow valley with steep sides
12
Chain or group of islands