Answer:
From the passage, I can infer that:
The desert cities with increasing population experience drought due to low rainfall which causes problem to the populace.
Explicit detail from the passage: "The most obvious issue is the lack of water."
Implicit detail from the passage: "This population boom is hard on the desert environments of these cities."
Explanation:
An explicit detail gives a very clear and well understood detail. It is umabiguious and without vagueness. While an implicit detail does not give a very clear and direct detail. It is usually implied or assumed.
From the passage, we can see that lack of water is found in deserts. The detail is explicit and with facts.
But saying that the population boom is hard on the desert environments seem implied or the author's assumption.
