Across
1
City that is seat of government
3
Line dividing two countries
6
Largest ocean on Earth
7
Cold treeless Arctic plain
8
Vast body of salt water
9
Flat elevated area of land
10
Long-term weather patterns of an area
Down
1
One of seven major landmasses
2
Land surrounded by water on three sides
4
Large natural stream of water
5
Large body of water partly enclosed by land