UNIT 2

Why do water supplies vary?

Specification detail

5.1d Water surplus and deficit on a world scale, related to global rainfall patterns.

Why do water supplies vary

World Water Supply: Here

Choropleth mapping

Which areas have the most access to safe drinking water?

Create a key on your map for the following categories:

0-20 20-40 40-60 60-80 80-100

Shade in the areas on your map (using one colour) according to the table

Continent % of population who have access to safe

drinking water

N.America 99

S.America 75

Europe 99

Central Asia 39

North Asia 95

South Asia 59

N . Africa 10

C & S Africa 65

Oceania 99

Rainfall

Extension

Describe the distribution of water around the globe

Give reasons for this distribution