Complete the sentence about Nakdong River with the correct year: In ______, there were two incidents where phenol was leaked into the river from Doosan Electronics.

Answer and explanation

Correct answer: C. 1991

  1. Step 1: In 1991, there were two incidents where phenol was leaked into the river from Doosan Electronics. Answer: 1991. Why not the others: 1981, 2001 and 1994 don't fit.

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