BESC 320 FINAL EXAM REVIEW
QUESTIONS AND ANSWERS 2026
VERIFIED.
What is the reason for acid rain?
a.) Chlorination of water
b.) Chemical reactions such that NO2 reacts with H2O
c.) Chemical reactions such that NO and SO2 reacts with H2O - ANS Chemical reactions
such that NO and SO2 reacts with H2O
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 - ANS Nitrogen and phosphorus
What is the normal pH of unpolluted rainwater?
a.) 3-4
b.) 5-6
c.) 6-7
d.) 7-8 - ANS 5-6
Is chelation in wastewater a problem for water treatment? - ANS Yes
1
, Is decreasing pH good or bad for aquatic life? - ANS Bad
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 - ANS 1-2 mg/L
Which lake has a higher value of electrical conductivity?
a.) Lake Superior
b.) Great Salt Lake - ANS Great Salt Lake
Which ecosystem do rivers and streams belong to?
a.) Lotic
b.) Lentic
c.) Wetlands - ANS Lotic
A private well is typically pulling water from ___.
a.) Surface water
b.) Ground water - ANS Ground water
What are the five processes making up the hydrological cycle? - ANS - Condensation
- Precipitation
- Infiltration
- Runoff
- Evapotranspiration
What are the usages of water resources?
2
QUESTIONS AND ANSWERS 2026
VERIFIED.
What is the reason for acid rain?
a.) Chlorination of water
b.) Chemical reactions such that NO2 reacts with H2O
c.) Chemical reactions such that NO and SO2 reacts with H2O - ANS Chemical reactions
such that NO and SO2 reacts with H2O
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 - ANS Nitrogen and phosphorus
What is the normal pH of unpolluted rainwater?
a.) 3-4
b.) 5-6
c.) 6-7
d.) 7-8 - ANS 5-6
Is chelation in wastewater a problem for water treatment? - ANS Yes
1
, Is decreasing pH good or bad for aquatic life? - ANS Bad
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 - ANS 1-2 mg/L
Which lake has a higher value of electrical conductivity?
a.) Lake Superior
b.) Great Salt Lake - ANS Great Salt Lake
Which ecosystem do rivers and streams belong to?
a.) Lotic
b.) Lentic
c.) Wetlands - ANS Lotic
A private well is typically pulling water from ___.
a.) Surface water
b.) Ground water - ANS Ground water
What are the five processes making up the hydrological cycle? - ANS - Condensation
- Precipitation
- Infiltration
- Runoff
- Evapotranspiration
What are the usages of water resources?
2
