Across
1
Large natural stream of water
4
Steep rock face at edge of land
5
Seasonal heavy rainfall
6
Body of water surrounded by land
9
Region surrounding the North Pole
10
Vast body of salt water
Down
2
Low-lying land surrounded by higher ground
3
Region between the two tropic lines
7
Distance north or south of equator
8
Ridge of rock or coral near the surface