Across
1
Flat grassland in tropical regions
4
Large body of water partly enclosed by land
5
Ridge of rock or coral near the surface
6
Land surrounded by water on three sides
7
Piece of land jutting into the sea
9
Deep narrow valley with steep sides
Down
2
Region between the two tropic lines
3
Seasonal heavy rainfall
4
Large slow-moving mass of ice
6
Flat elevated area of land
8
Region surrounding the North Pole