Across
1
Region between the two tropic lines
5
Where river meets the sea
6
Body of water surrounded by land
7
Seasonal heavy rainfall
8
Height above sea level
9
Total number of people in an area
12
Steep rock face at edge of land
Down
2
Large natural stream of water
3
Largest hot desert in the world
4
Goods brought in from another country
10
Large area covered with trees
11
Chain or group of islands