Across
1
Cold treeless Arctic plain
3
Seasonal heavy rainfall
5
Region surrounding the North Pole
6
Long-term weather patterns of an area
7
Large area covered with trees
9
Flat grassland in tropical regions
12
Wearing away of land by water or wind
Down
1
Region between the two tropic lines
2
Flat elevated area of land
4
Area where water covers the soil
8
Landform where river meets the sea
10
Ridge of rock or coral near the surface
11
Vast body of salt water