Across
1
Where river meets the sea
5
Distance east or west of prime meridian
6
Area where water covers the soil
8
Body of water surrounded by land
9
Deep narrow valley with steep sides
Down
2
Distance north or south of equator
3
Flat grassland in tropical regions
4
Land surrounded by water on three sides
7
Region near the equator
10
Steep rock face at edge of land