Across
1
Vast body of salt water
5
Total number of people in an area
7
Distance north or south of equator
9
Low-lying land surrounded by higher ground
Down
2
Ridge of rock or coral near the surface
3
Wearing away of land by water or wind
4
Deep narrow valley with steep sides
6
Land surrounded by water
8
Large body of water partly enclosed by land
10
Land surrounded by water on three sides