Across
1
Large natural stream of water
3
Total number of people in an area
6
Region near the equator
7
Flat grassland in tropical regions
8
Mountain that can erupt with lava
Down
2
Region between the two tropic lines
4
Piece of land jutting into the sea
5
Landform where river meets the sea
9
Largest hot desert in the world
10
Chain or group of islands