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20 POINTS!!!! Which of the following might indicate that wastewater was not treated sufficiently before being discharged into a river? 1. A dead zone II. Cultural eutrophication III. High oxygen levels
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23 votes
20 POINTS!!!!

Which of the following might indicate that wastewater was not treated sufficiently before being discharged into a river?
1. A dead zone
II. Cultural eutrophication
III. High oxygen levels

a) Il only
b) III only
c) I and II only
d) II and III only

User Andrw
by
7.5k points

2 Answers

14 votes
High Oxygen Levels.
User Dochoffiday
by
6.8k points
8 votes

Answer:it's l,ll

Step-by-step explanation:

User Nicolas Repiquet
by
7.7k points
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