Across
1
Ridge of rock or coral near the surface
3
Flat elevated area of land
4
Long-term weather patterns of an area
5
Area where water covers the soil
6
Large body of water partly enclosed by land
9
Region surrounding the North Pole
10
Land surrounded by water
11
Large slow-moving mass of ice
Down
2
Distance east or west of prime meridian
7
Land surrounded by water on three sides
8
Half of the Earth