Across
1
Vast body of salt water
3
Region near the equator
6
Landform where river meets the sea
7
Distance east or west of prime meridian
8
Total number of people in an area
9
Wearing away of land by water or wind
Down
2
Large slow-moving mass of ice
4
Cold treeless Arctic plain
5
Long-term weather patterns of an area
10
Deep narrow valley with steep sides