Across
1
Largest hot desert in the world
4
Large natural stream of water
5
Low-lying land surrounded by higher ground
6
Long-term weather patterns of an area
10
City that is seat of government
12
Land surrounded by water on three sides
Down
2
Mountain that can erupt with lava
3
Region between the two tropic lines
7
Narrow sea inlet between cliffs
8
Physical features of land
9
Cold treeless Arctic plain
11
Largest river in South America
13
Flat grassland in tropical regions