Across
1
Body of water surrounded by land
3
Deep narrow valley with steep sides
4
Long-term weather patterns of an area
8
Flat grassland in tropical regions
11
Land surrounded by water
Down
2
Cold treeless Arctic plain
5
Landform where river meets the sea
6
Low-lying land surrounded by higher ground
7
Low area between mountains
9
Large slow-moving mass of ice
10
Piece of land jutting into the sea