Across
1
Visual representation of an area
3
Height above sea level
6
Deep narrow valley with steep sides
10
Mountain that can erupt with lava
11
Large slow-moving mass of ice
12
Seasonal heavy rainfall
Down
2
Region near the equator
4
Where river meets the sea
5
Wearing away of land by water or wind
7
Largest hot desert in the world
8
Largest river in South America
9
Low-lying land surrounded by higher ground
13
Distance north or south of equator