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Sustainable water-supply strategies
Suggest how water supplies have been made more sustainable. Use an example of a local scheme in an LIC/NEE.
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Marking points
- 1 Uses a local LIC/NEE water-supply scheme.
- 2 Explains scheme actions that improve water supply.
- 3 Links actions to sustainability, not just water availability.
Full-mark answer
Sand dams in Kenya make water supply more sustainable because they trap water in sand behind a small concrete dam during the rainy season. The stored water is protected from evaporation and can be used in the dry season, making supply more reliable. The scheme is small-scale and uses appropriate technology, so local people can maintain it.
Why this answer loses marks
Uses a large water-transfer scheme or general home water-saving ideas.
The response needs a local LIC/NEE scheme and why its supply improvement is sustainable.