Across
1
Goods sold to another country
5
Low-lying land surrounded by higher ground
6
Steep rock face at edge of land
8
Deep narrow valley with steep sides
9
Flat grassland in tropical regions
11
Ocean between Americas and Europe/Africa
12
Region between the two tropic lines
Down
2
Largest hot desert in the world
3
Vast body of salt water
4
Largest ocean on Earth
7
Area where water covers the soil
10
Seasonal heavy rainfall