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BESC 320 Water Exam Questions and Answers
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BESC 320 Water Exam Questions and Answers
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BESC 320 Water Exam Questions andAnswers
What is the reason for acid rain?
A) Chlorination of water
B) Chemical reactions such that NO2 reacts with H20
C) Chemical Reactions such that NO and SO2 reacts with H20
C
What are the major constituents of nutrients in natural water?
A) fertilizers and animal wastes
B) Nitrogen and phosphorus
C) Waste oil and food waste
D) Calcium and carbonates
B
What is the normal pH of unpolluted riverwater
A) 3-4
B) 5-6
C) 6-7
D) 7-8
,B
What of the below range may indicate water is polluted? (Select all that apply)
A) 0-1
B) 5-6
C) 10-11
D) 11-12
A,C,D
Is chelation in wastewater a problem for water treatment or not
A) Yes
B) No
A
Is decreasing pH good or bad for aquatic life?
A) Good
B) Bad
B
The stream runs into a "fish kill" when the concentration of dissolved oxygen is
A) 5 mg/L
B) 3 mg/L
C) 1-2 mg/L
, C
At what concentration that a "fish kill" will happen in a stream?
A) 5 mg/L
B) 3 mg/L
C) 1-2 mg/L
C
Which lake has a higher value of electrical conductivity
A) Lake superior
B) Great Salt Lake
B
Which ecosystem do rivers and streams belong to
A) Lotic
B) Lentic
C) Wetlands
A
A private well is typically pulling water from
A) Surface water
B) Ground Water
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