Across
1
Long-term weather patterns of an area
5
Deep narrow valley with steep sides
7
Half of the Earth
8
Flat grassland in tropical regions
9
Mountain that can erupt with lava
Down
2
Land surrounded by water on three sides
3
Largest river in South America
4
Region between the two tropic lines
6
Piece of land jutting into the sea
7
Raised area of land, smaller than a mountain