What are the three biological concerns of water quality? (Mark all that apply.)Group of answer choicesProtozoaVirusesHigh dissolved oxygen (DO) levelsBacteriaHard water (calcium and magnesium)
Question
What are the three biological concerns of water quality? (Mark all that apply.)Group of answer choicesProtozoaVirusesHigh dissolved oxygen (DO) levelsBacteriaHard water (calcium and magnesium)
Solution
The three biological concerns of water quality are:
- Protozoa
- Viruses
- Bacteria
These organisms can contaminate water and cause various diseases when ingested or come into contact with humans. High dissolved oxygen (DO) levels and hard water (calcium and magnesium) are more related to the chemical aspects of water quality.
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