Across
1
Low-lying land surrounded by higher ground
4
Body of water surrounded by land
5
Region surrounding the North Pole
8
Distance east or west of prime meridian
10
Total number of people in an area
12
Steep rock face at edge of land
Down
2
Where river meets the sea
3
City that is seat of government
6
Large natural stream of water
7
Piece of land jutting into the sea
9
Large natural elevation of earth
11
Half of the Earth