Across
1
Low area between mountains
4
Region surrounding the North Pole
5
Flat elevated area of land
6
Large slow-moving mass of ice
9
Dry land with little rainfall
10
Long-term weather patterns of an area
11
Line dividing two countries
Down
2
Distance north or south of equator
3
Large body of water partly enclosed by land
7
Body of water surrounded by land
8
Large natural stream of water
10
Deep narrow valley with steep sides