“One of the most interesting things to see in Brazil is the place where two rivers meet but do not mix. They are the “White” Solimões River and the “black” Negro River. They flow next to each other for six kilometers (3.7 miles) in the Amazonas State, but the colors of the water don’t mix because of different temperatures and speed – The Solimões River is faster and cooler than the Negro River. After several kilometers, the two rivers become part of the lower Amazon River”
Fonte: https://www.liveworksheets.com › download-pdf.
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