Across
1
Largest river in South America
6
Physical features of land
7
Imaginary line around the middle of Earth
8
Area where water covers the soil
9
One of seven major landmasses
11
Landform where river meets the sea
Down
2
Deep narrow valley with steep sides
3
Visual representation of an area
4
Low-lying land surrounded by higher ground
5
Vast body of salt water
10
Flat grassland in tropical regions
12
Seasonal heavy rainfall