Across
1
Distance east or west of prime meridian
3
Flat grassland in tropical regions
5
Body of water surrounded by land
7
Narrow sea inlet between cliffs
8
Raised area of land, smaller than a mountain
11
Piece of land jutting into the sea
12
Chain or group of islands
Down
2
Imaginary line around the middle of Earth
4
Height above sea level
6
Wearing away of land by water or wind
9
Where river meets the sea
10
Land surrounded by water