dulceslolipops dulceslolipops
  • 24-05-2018
  • Social Studies
contestada

The most common source of infectious diseases in water supplies is _______.
a.
algal blooms
b.
sewage
c.
surface runoff
d.
none of the above



CORRECT ANSWER IS B

Respuesta :

Kkin1047
Kkin1047 Kkin1047
  • 24-05-2018
I thought it was surface runoff
Answer Link
justinkneessi
justinkneessi justinkneessi
  • 20-04-2020

Answer:b

Explanation:

Answer Link

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