Edexcel GCSE Geography A 1GA0
Changing Cities
Coastal Landscapes and ProcessesLandscape option
Ecosystems, Biodiversity and Management
Energy Resource ManagementResource option
Geographical Investigations – Fieldwork
Geographical Investigations − UK Challenges
Geographical Skills
Glaciated Upland Landscapes and ProcessesLandscape option
Global Development
Mathematics and Statistics Skills
Resource Management
River Landscapes and ProcessesLandscape option
The Changing Landscapes of the UK
Water Resource ManagementResource option
Weather Hazards and Climate Change
Water Resource Management
Changing water supply and demand
- 3 things to know
- Paper 2 section C
Overview
How population growth, living standards, irrigation and industry have raised demand, how dams, boreholes and transfer schemes have raised supply, how over-abstraction, pollution and deforestation reduce it, and how population projections compare with the fresh water available per person.
What you need to know
Answer each one before you reveal it.
How has population growth affected the demand for water over the last fifty years?
How have rising living standards increased how much water each household uses?
Questions from this subtopic
Each one with the model answer underneath.
- 1
How has population growth affected the demand for water over the last fifty years?
Model answer
Far more people need drinking water, food and sanitation, so total demand has risen steeply even where use per person has not.
- 2
How have rising living standards increased how much water each household uses?
Model answer
Homes now have flush toilets, showers, washing machines and dishwashers, and many have gardens and cars to wash.
- 3
Why has farming pushed water demand up in recent decades?
Model answer
More land has been put under irrigation to feed a growing population, and irrigation is by far the thirstiest use of water.
- 4
How has industrial growth changed the demand for water?
Model answer
Manufacturing needs water for processing and cleaning, and power stations use huge volumes for cooling.
- 5
How do dams and reservoirs increase the water supply available to people?
Model answer
They store river water through wet periods so that a steady, reliable amount can be released when it is needed.
- 6
How have wells and boreholes changed supply?
Model answer
Powered pumps allow groundwater to be lifted from deep aquifers, opening up supplies that hand-dug wells could never reach.
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