Across
1
Wearing away of land by water or wind
6
Seasonal heavy rainfall
9
Piece of land jutting into the sea
10
Region near the equator
12
Ridge of rock or coral near the surface
Down
2
Large slow-moving mass of ice
3
Largest river in South America
4
Low-lying land surrounded by higher ground
5
Mountain that can erupt with lava
7
Where river meets the sea
8
Area where water covers the soil
10
Cold treeless Arctic plain
11
Large area covered with trees