Across
1
Height above sea level
6
Flat grassland in tropical regions
8
Low-lying land surrounded by higher ground
9
Seasonal heavy rainfall
10
Distance east or west of prime meridian
Down
2
Dry land with little rainfall
3
Land surrounded by water
4
Wearing away of land by water or wind
5
Area where water covers the soil
7
Body of water surrounded by land
11
Large body of water partly enclosed by land