Chapter 13 – Living in the Environment/ 12th ed

- Fixing leaks in water mains, pipes, toilets, and faucets: leaks waste about half of the water supply in many cities in developing countries and 20-35% of water withdrawn from public supplies in the United States and the Unites Kingdom. In water-short Cairo, Egypt, people often wade across streets ankle deep in water because of leaky water pipes. ................
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