Across
1
Ridge of rock or coral near the surface
4
Large area covered with trees
7
Flat grassland in tropical regions
8
Largest ocean on Earth
10
Large body of water partly enclosed by land
11
Body of water surrounded by land
Down
2
Low area between mountains
3
Steep rock face at edge of land
5
Region near the equator
5
Region between the two tropic lines
6
Area where water covers the soil
9
Total number of people in an area