Across
1
Wearing away of land by water or wind
6
Imaginary line around the middle of Earth
7
One of seven major landmasses
8
Distance north or south of equator
11
Region near the equator
Down
2
Large slow-moving mass of ice
3
Narrow sea inlet between cliffs
4
Largest ocean on Earth
5
Land surrounded by water
9
Region between the two tropic lines
10
Low-lying land surrounded by higher ground