5. Which of the following are indicators of healthy water system?
A high nitrates, high pH and low temperature
B low pH, high temperature, high nitrates
C low dissolved oxygen, low temperature, neutral pH
D low temperature, high dissolved oxygen, neutral pH
Answers & Comments
Answer:
5. Which of the following are indicators of healthy water system?
A high nitrates, high pH and low temperature
B low pH, high temperature, high nitrates
C low dissolved oxygen, low temperature, neutral pH
D low temperature, high dissolved oxygen, neutral pH