Across
1
Large slow-moving mass of ice
4
Seasonal heavy rainfall
7
Total number of people in an area
9
Height above sea level
10
Imaginary line around the middle of Earth
11
Region surrounding the North Pole
12
Low-lying land surrounded by higher ground
Down
2
One of seven major landmasses
3
Distance east or west of prime meridian
5
Landform where river meets the sea
6
Area where water covers the soil
8
Cold treeless Arctic plain