resources

Question 1

demand

Answer 1

• In the UK, places with a good supply of water are not the same as the places with the highest demand
• Demand for water in the UK is increasing
  - Since 1975 the household water volume has gone up by 75% with more dishwashers and washing machine appliances
  - Also, the increasing population – expected to increase by 6 million by 2040 means more water is needed
  - Population densities are also changing, there are plans to build lots of new homes in the South – East when there is already a water deficit

Question 2

Pollution

Answer 2

• Nitrates and phosphates from crop fertilisers are washed into rivers and groundwater through a process called eutrophication

Question 3

Solution: water transfers

Answer 3

• To solve demand and supply issues, transfer water from areas of surplus to areas of deficit
• E.g. Wales (H20)  Birmingham (H2) deficit)
• Issues with water transfer
  
  • Dams and aqueducts are expensive to build
  • Dams can affect wildlife that live in rivers
  • Might be political – people might not want their water transferred to another area.

Question 4

Key words

Answer 4

• Water deficit – too little water
• Water surplus – excess water
• Water security – enough water to meet everyone’s needs
• Water insecurity – not enough water to meet everyone’s needs
• Demand
• Supply
• Water stress – when demand exceeds supply

Question 5

Why is H20 demand rising