Across
1
Low-lying land surrounded by higher ground
2
Steep rock face at edge of land
4
Height above sea level
9
Line dividing two countries
Down
2
One of seven major landmasses
3
Imaginary line around the middle of Earth
5
Land surrounded by water
6
Large body of water partly enclosed by land
7
Chain or group of islands
8
Raised area of land, smaller than a mountain