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1.Polluted __________ can transmit diseases such as typhoid fever, cholera, and infectious hepatitis.   A. air   B. water   C. noise

User Smajl
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2 Answers

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B. Water

(Cholera is a waterborne illness ;) )
User Ann Addicks
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The answer is that polluted Water can transmit all of those diseases. 
User Xbito
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