Relationship of water supply to physical geography: climate, geology and drainage
Where water is available depends on physical geography. Climate controls how much rain falls, geology controls where water is stored underground, and drainage controls how water moves across the land.
Real World
The UK's porous chalk and limestone geology underlies the Thames Basin, where the Chalk Aquifer supplies millions of Londoners; by contrast, impermeable granite in the Scottish Highlands prevents groundwater storage, making surface reservoirs the primary supply instead.
Exam Focus
When asked to 'assess' physical factors, evaluate each factor's relative importance — don't list them all equally; argue which dominates in your chosen region.
Essay Framework
Use PEEL to structure every paragraph. Tap each step for guidance and an example.
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