Across
1
Vast body of salt water
4
Low area between mountains
5
Region near the equator
7
Imaginary line around the middle of Earth
8
Large slow-moving mass of ice
Down
2
Region between the two tropic lines
3
Land surrounded by water on three sides
5
Cold treeless Arctic plain
6
Distance east or west of prime meridian
9
Seasonal heavy rainfall
10
Mountain that can erupt with lava