Answer and explanation

Correct answer: B. A barren plateau of bare rock swept free of sand

  1. Step 1: Hamadas are rocky plateaus, and the Tademaït is a large example in Algeria. Step 2. Compare each option with this fact and discard those that conflict with it. Answer: A barren plateau of bare rock swept free of sand. Why not the others: A dune field with ridges more than 100 metres high, A plain covered with gravel and small stones and A basin where winter rains leave a salt crust do not fit the fact above; they describe different things or do not match the question.

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