Soil contains human pathogens,for instance _____.
A) Clostridium tetani
B) Bacillus anthracis
C) Clostridium perfringens
D) all of these choices
Correct Answer:
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Q28: Which of the following is used to
Q29: Eutrophication leads to:
A)a decrease in oxygen
B)plants become
Q30: The primary producers in the ocean are:
A)bacteria
B)viruses
C)phytoplankton
D)two
Q31: Which is the order of purification procedures
Q32: Which of the following statements about biogeochemical
Q34: How do the ONPG and MUG test
Q35: Which of the following statements about soil
Q36: The trickling filtration system employs a bed
Q37: Tertiary treatment of sewage could include:
A)chlorine
B)UV light
C)ozone
D)all
Q38: The predominant genus of microbe found in
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