Across
1
Landform where river meets the sea
4
Flat elevated area of land
5
Long-term weather patterns of an area
6
Large natural elevation of earth
11
Line dividing two countries
Down
2
Large natural stream of water
3
Large slow-moving mass of ice
7
Dry land with little rainfall
8
Distance east or west of prime meridian
9
Height above sea level
10
Deep narrow valley with steep sides