Across
1
Large natural elevation of earth
5
Largest ocean on Earth
6
Region between the two tropic lines
7
Half of the Earth
9
Deep narrow valley with steep sides
10
Land surrounded by water on three sides
Down
2
Narrow sea inlet between cliffs
3
Landform where river meets the sea
4
Chain or group of islands
8
Wearing away of land by water or wind
11
Raised area of land, smaller than a mountain