Across
1
Imaginary line around the middle of Earth
5
Land surrounded by water on three sides
9
Raised area of land, smaller than a mountain
10
Where river meets the sea
Down
2
Seasonal heavy rainfall
3
Low-lying land surrounded by higher ground
4
Large area covered with trees
6
Distance east or west of prime meridian
7
Largest hot desert in the world
8
Flat grassland in tropical regions