Across
1
Ridge of rock or coral near the surface
3
Seasonal heavy rainfall
4
Height above sea level
7
Largest hot desert in the world
9
Flat grassland in tropical regions
11
Line dividing two countries
12
Large area covered with trees
Down
2
Dry land with little rainfall
5
Region near the equator
6
Land surrounded by water
8
Deep narrow valley with steep sides
10
Goods sold to another country
13
Large body of water partly enclosed by land