Across
1
Landform where river meets the sea
3
Distance east or west of prime meridian
4
Vast body of salt water
5
Region surrounding the North Pole
9
Low-lying land surrounded by higher ground
Down
2
Land surrounded by water on three sides
3
Distance north or south of equator
6
Deep narrow valley with steep sides
7
Mountain that can erupt with lava
8
Body of water surrounded by land
10
Dry land with little rainfall