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OpenStudy (anonymous):

What made the Rhine River one of Europe's most polluted rivers? A. urbanization B. loess C. industrial waste D. natural gas

OpenStudy (paki):

what u think here about the answer...?

OpenStudy (anonymous):

it may be B or C?

OpenStudy (paki):

agree with C...

OpenStudy (anonymous):

thank you!

OpenStudy (paki):

pleasure

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