Across
1
Total number of people in an area
6
Dry land with little rainfall
7
Imaginary line around the middle of Earth
8
Physical features of land
11
Raised area of land, smaller than a mountain
Down
2
Region near the equator
3
Largest river in South America
4
Cold treeless Arctic plain
5
Half of the Earth
9
Long-term weather patterns of an area
10
Piece of land jutting into the sea
12
Large natural elevation of earth
13
Body of water surrounded by land