Across
1
Vast body of salt water
3
Dry land with little rainfall
4
Largest river in South America
6
Largest ocean on Earth
7
Region near the equator
7
Region between the two tropic lines
8
Landform where river meets the sea
Down
2
Cold treeless Arctic plain
5
Mountain that can erupt with lava
9
Body of water surrounded by land
10
Region surrounding the North Pole