Across
1
Raised area of land, smaller than a mountain
3
Piece of land jutting into the sea
4
Largest river in South America
5
Where river meets the sea
7
Seasonal heavy rainfall
9
Ridge of rock or coral near the surface
Down
2
Flat elevated area of land
5
Wearing away of land by water or wind
6
Largest ocean on Earth
8
Vast body of salt water
10
Large natural elevation of earth