Across
1
Land surrounded by water on three sides
5
Flat grassland in tropical regions
6
Low-lying land surrounded by higher ground
8
Largest ocean on Earth
11
Goods sold to another country
Down
2
Landform where river meets the sea
3
Deep narrow valley with steep sides
4
Chain or group of islands
7
Height above sea level
9
Body of water surrounded by land
10
Piece of land jutting into the sea