Across
1
Imaginary line around the middle of Earth
4
Low area between mountains
7
Dry land with little rainfall
8
Large body of water partly enclosed by land
10
Largest hot desert in the world
Down
1
Where river meets the sea
2
Total number of people in an area
3
Distance east or west of prime meridian
5
Goods sold to another country
6
Largest river in South America
9
Body of water surrounded by land