Water supply problems in HICs Quality of water Using p142 complete the diagram Spatial imbalance Spatial variations • Study Figure 10 (student book p. 142). Then complete a copy of the diagram below by: Marking and labelling each of the following: dam, reservoir, hillside, road, valley sides. • Add notes to your copy explaining why water is transported from the north and west of Britain to the south and east. Seasonal variability Seasonable variability Seasonal variability: Costa del Sol Mark scheme Loss through broken pipes Study student book p. 143, then answer these questions: (a) When was the water distribution in London constructed? (b) What happened as demand increased? (c) What did this lead to? (d) When was a new ring main built? (e) How much water is supplied daily via the ring main? 2009: Past paper question • Describe two problems of water supply in high-income countries. (4)