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Microbiology 9th Edition by Laura Black, Jacquelyn Black
النسخة 9الرقم المعياري الدولي: 9781118934753Microbiology 9th Edition by Laura Black, Jacquelyn Black
النسخة 9الرقم المعياري الدولي: 9781118934753 تمرين 3
Which of the following could be an effect of an excess of sewage running into a freshwater reservoir?
(a) It could cause the water to become polluted and nonpo table.
(b) It could cause an increase in the biological oxygen de mand (BOD).
(c) It could cause oxygen depletion, leading to an increase in the anaerobic microbial population.
(d) Large quantities of organic wastes could be left behind, killing off many plants and animals or causing animals to migrate.
(e) All of the above.
(a) It could cause the water to become polluted and nonpo table.
(b) It could cause an increase in the biological oxygen de mand (BOD).
(c) It could cause oxygen depletion, leading to an increase in the anaerobic microbial population.
(d) Large quantities of organic wastes could be left behind, killing off many plants and animals or causing animals to migrate.
(e) All of the above.
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The sewage can be defined as the used wa...
Microbiology 9th Edition by Laura Black, Jacquelyn Black
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