Across
1
Low-lying land surrounded by higher ground
4
Narrow sea inlet between cliffs
5
Distance east or west of prime meridian
9
Raised area of land, smaller than a mountain
11
Where river meets the sea
Down
2
Region near the equator
3
Area where water covers the soil
6
Goods sold to another country
7
Wearing away of land by water or wind
8
Large natural elevation of earth
10
Height above sea level