Across
1
Imaginary line around the middle of Earth
5
Low-lying land surrounded by higher ground
6
Large natural elevation of earth
9
Physical features of land
10
Low area between mountains
12
Total number of people in an area
13
Flat elevated area of land
Down
2
Region near the equator
3
Goods brought in from another country
4
Large body of water partly enclosed by land
7
Long-term weather patterns of an area
8
Largest river in South America
11
Where river meets the sea