Across
1
Imaginary line around the middle of Earth
4
Long-term weather patterns of an area
6
Landform where river meets the sea
7
Cold treeless Arctic plain
8
Goods sold to another country
9
Goods brought in from another country
10
Region between the two tropic lines
Down
2
Half of the Earth
3
Dry land with little rainfall
4
Steep rock face at edge of land
5
Line dividing two countries
11
Large slow-moving mass of ice
12
Large area covered with trees