Which of the following is an indicator of good water quality? (2 points)

ph lower than 5.0

high levels of fecal coliform

high levels of dissolved oxygen

all of the above

High levels of dissolved oxygen

Explanation:

because if you know the structure of water it has h2O  and the o is the dissolved oxygen if you have high levels of that then you are good i hope this helps

c, this answer is productivity.

answer; creep;