Across
1
Piece of land jutting into the sea
2
Imaginary line around the middle of Earth
3
Where river meets the sea
8
Low-lying land surrounded by higher ground
9
Flat elevated area of land
Down
2
Goods sold to another country
4
Largest river in South America
5
Mountain that can erupt with lava
6
Region surrounding the North Pole
7
Long-term weather patterns of an area
10
Flat grassland in tropical regions