Which of the following do NOT fix atmospheric nitrogen?
A) cyanobacteria
B) mycorrhizae
C) lichens
D) Rhizobium
E) Azotobacter
Correct Answer:
Verified
Q22: Drinking water supplies are routinely tested for
Q24: Residual chlorine must be maintained in
A) anaerobic
Q25: Bacteria can increase the Earthʹs temperature by
A)
Q26: Which of the following is mismatched?
A) N2
Q26: Figure 27.1 Q29: Which of the following terms describes NO3- Q30: Filtration to remove protozoa occurs in Q31: Zoogloea form flocculent masses in Q32: Aerobic respiration occurs in Q38: Sedimentation of sludge occurs in
A) tertiary
A) tertiary sewage
A) secondary sewage treatment.
B)
A)anaerobic sludge digestion.
B)primary
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