Across
1
Landform where river meets the sea
4
Deep narrow valley with steep sides
5
Distance north or south of equator
8
Low-lying land surrounded by higher ground
9
Flat grassland in tropical regions
10
Large area covered with trees
Down
2
Vast body of salt water
3
Mountain that can erupt with lava
6
Region near the equator
6
Region between the two tropic lines
7
Piece of land jutting into the sea