Across
1
Height above sea level
3
Large area covered with trees
5
Flat grassland in tropical regions
7
City that is seat of government
10
Cold treeless Arctic plain
Down
2
Total number of people in an area
3
Narrow sea inlet between cliffs
4
Imaginary line around the middle of Earth
6
Long-term weather patterns of an area
7
One of seven major landmasses
8
Landform where river meets the sea
9
Seasonal heavy rainfall
11
Largest river in South America