Water

• What is water surplus (security)?

  This exists where water supply is greater than demand.
• What is water deficit (insecurity)?

  This exists where water demand is greater than supply.
• What are the global patterns of water surplus and deficit?

  large areas of Africa / Southern Asia suffer water stress (located close to areas of low or no water). In contrast areas to the north of the northern hemisphere have plenty of water e.g. North-East Brazil in the Amazon Rainforest.
• Give 3 ways in which we use water in our lives?

  • Domestic Use – drinking, cooking bathing etc.

  • Agricultural use – irrigating crops / water for

  livestock

  • Industrial use – use in manufacturing

  • Energy use – used in the generation of HEP

  • Leisure use – as in sailing / waterskiing, filling

  swimming pools etc.
• What are the reasons for increasing water consumption?

  Population growth-

  • Increase in the amount of water needed for drinking.
  • As well as an increase in domestic water demand, population growth also increases the use of water for:
  • Energy production
  • Agriculture
  • Industry.

  Economic growth- as countries develop the demand for water increases. More items that use water, industries use large water quantities.