In a dense city, a water-supply problem is linked not only with population number but also with what?

Correct answer: The distribution system, source capacity and management

Answer: A, the distribution system, source capacity and management. A dense city may have many residents, but the effect of that population depends on whether water sources, treatment plants, storage tanks, pipes and management systems can supply people reliably. Even a city with a large population may reduce shortages through adequate infrastructure, conservation and effective distribution. Conversely, a smaller area or a smaller population may still experience problems if sources are limited, pipes are weak, supply is uneven, or management is poor. A is correct because it includes both physical capacity and administrative operation. B is wrong because a city’s name has no direct effect on water quantity. C is wrong because sea waves alone do not determine the supply of treated usable water. D is wrong because map colour is only a representation. Memory cue: population creates demand, but infrastructure and management determine how well demand is served.