Across
1
Total number of people in an area
6
Ridge of rock or coral near the surface
7
Ocean between Americas and Europe/Africa
8
Visual representation of an area
11
Where river meets the sea
Down
2
Steep rock face at edge of land
3
Flat grassland in tropical regions
4
Low-lying land surrounded by higher ground
5
Large area covered with trees
9
Height above sea level
10
Deep narrow valley with steep sides