Across
1
Distance east or west of prime meridian
6
Ocean between Americas and Europe/Africa
7
Largest hot desert in the world
8
Low-lying land surrounded by higher ground
9
Largest river in South America
10
Mountain that can erupt with lava
11
Dry land with little rainfall
Down
2
Physical features of land
3
Flat elevated area of land
4
Cold treeless Arctic plain
5
Imaginary line around the middle of Earth