Across
1
Steep rock face at edge of land
3
Total number of people in an area
6
Raised area of land, smaller than a mountain
7
Vast body of salt water
8
Body of water surrounded by land
9
Imaginary line around the middle of Earth
Down
2
Low-lying land surrounded by higher ground
4
Wearing away of land by water or wind
5
Mountain that can erupt with lava