What is the acceptable level of coliform bacteria colonies in drinking water,according to the World Health Organization?
A) 0 per 100 millilitres of water sample
B) 5 per 100 millilitres of water sample
C) 10 per 100 millilitres of water sample
D) 100 per 100 millilitres of water sample
Correct Answer:
Verified
Q13: Which of the following is a nonpoint
Q14: What decreases photosynthesis in bodies of water?
A) sediment
Q15: What is a good indicator of water
Q16: What influences oxygen levels in the water?
A) Sewage
Q17: To which category do nitrates and phosphates
Q19: Which statement describes the relationship between oxygen
Q20: What will a scientist NOT likely use
Q21: Which stage of cultural eutrophication occurs last?
A) algae
Q22: Which element do authorities try to limit
Q23: What causes the death of game fish
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