Which of the following is an indicator of good water quality?

Question

anonymous · Answer

options ?

anonymous · Answer

Low levels of dissolved oxygen
		
Low levels of fecal coliform
		
All of the above
		
pH higher than 9.0

australopithecus · Answer

pH higher than 9.0 is not a good indicator of water quality

australopithecus · Answer

water is typically 7.0 pH

australopithecus · Answer

A Low level of dissolved oxygen from my memory is evidence of high bacterial presence in the water sample thus it cannot be a good indicator of water quality.

Finally Low levels of fecal coliforms is probably the correct answer because fecal coliforms present is an indication that there are pathogens present in the water

australopithecus · Answer

Also this is mathematics you want the biology section

anonymous · Answer

Thanks, Sorry

australopithecus · Answer

or high levels of fecal contamination which is an indication that pathogens might be pressent

australopithecus · Answer

Aren't fecal coliforms just indicator bacteria that appear in greater number than pathogenic bacteria?