Across
1
Landform where river meets the sea
3
Deep narrow valley with steep sides
8
City that is seat of government
9
Flat grassland in tropical regions
10
Seasonal heavy rainfall
11
Large body of water partly enclosed by land
12
One of seven major landmasses
Down
2
Region surrounding the North Pole
4
Narrow sea inlet between cliffs
5
Large natural elevation of earth
6
Distance east or west of prime meridian
7
Imaginary line around the middle of Earth