Complete the sentence about Paraná River with the correct year: The falls were flooded, however, by the construction of the Itaipu Dam, which began operating in ______.

Answer and explanation

Correct answer: A. 1984

  1. Step 1: The falls were flooded, however, by the construction of the Itaipu Dam, which began operating in 1984. Answer: 1984. Why not the others: 2014, 1994 and 1974 don't fit.

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