The presence-absence test is a modification of which test?
A) Membrane filter
B) MPN
C) Virus plaque assay
D) None of these choices are correct.
Correct Answer:
Verified
Q7: Cryptosporidium has recently become of concern because
Q8: In the testing of water for coliforms,the
Q9: Canada geese have become a major source
Q10: Fecal coliforms are useful indicator organisms for
Q11: Cryptosporidium is an important waterborne disease.This organism
Q13: Coliforms and fecal coliform are often differentiated
Q14: Slow sand filtration effectively removes _.
A)Giardia lamblia
B)Cryptosporidium
Q15: What is the target threshold to meet
Q16: Rapid sand filtration,used in many water purification
Q17: Potable water is unfit for consumption or
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