Across
1
Raised area of land, smaller than a mountain
4
Large natural stream of water
6
Region between the two tropic lines
7
One of seven major landmasses
10
Cold treeless Arctic plain
Down
2
Wearing away of land by water or wind
3
Area where water covers the soil
5
City that is seat of government
8
Imaginary line around the middle of Earth
9
Where river meets the sea