Across
1
Body of water surrounded by land
2
Low-lying land surrounded by higher ground
4
Wearing away of land by water or wind
5
City that is seat of government
9
Land surrounded by water on three sides
Down
2
Line dividing two countries
3
Raised area of land, smaller than a mountain
6
Distance east or west of prime meridian
7
Where river meets the sea
8
Cold treeless Arctic plain