Complete the sentence about Cauca River with the correct year: On November 18, ______, Colombian newspaper El Tiempo reported that the river was receiving an average of 500 tons of residual waste a day.

Answer and explanation

Correct answer: A. 2007

On 18 November 2007 the Colombian paper El Tiempo reported that the river was taking in an average of 500 tons of waste. Pollution is a problem.

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