Question

select the independent clause.
the center of the atacama desert in south america is considered one of the most arid areas in the world because no rain has ever been recorded there.
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Explanation:

An independent clause is a complete sentence that can stand alone, expressing a full thought. The dependent clause here starts with the subordinating conjunction "because", so the remaining part is the independent clause.

Answer:

The center of the Atacama Desert in South America is considered one of the most arid areas in the world