Across
1
Large area covered with trees
5
Line dividing two countries
6
Raised area of land, smaller than a mountain
7
Goods sold to another country
8
Region surrounding the North Pole
9
Largest river in South America
10
Distance north or south of equator
Down
2
Half of the Earth
3
Ridge of rock or coral near the surface
4
Area where water covers the soil
10
Distance east or west of prime meridian
11
Body of water surrounded by land
12
Cold treeless Arctic plain