Read the excerpt:

Petra, in southern Jordan, was the capital of the Nabataean kingdom. The Nabataeans grew rich by controlling trade routes that carried spices and incense across the desert. They carved temples and tombs directly into the rose-coloured sandstone cliffs and built channels and dams to collect scarce rainwater. Today the city attracts visitors from all over the world, who enter through a narrow canyon called the Siq.

How did the Nabataeans become wealthy?

Answer and explanation

Correct answer: B. By controlling trade routes

  1. Step 1: Find the relevant detail in the text: "grew rich by controlling trade routes".
  2. Step 2: This detail answers the question directly.
Answer
By controlling trade routes.
Why not the others: "By farming the desert" is not supported by the text; "By mining rose-coloured sandstone" is not supported by the text; "By fishing in the Red Sea" is not supported by the text.

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