ENVS 1350 FINAL USU18 EXAM
QUESTIONS WITH 100% CORRECT
ANSWERS { GRADED A+}
What do energy experts at the National Renewable Energy Laboratory say would
be the quickest, easiest, cheapest way to reduce power demand? - ✔✔Adopt new
lighting technologies while phasing out standard incandescent bulbs
What represents a non point source of water pollution? - ✔✔Fallout of airborne
polllutants
Which of the following statements regarding bottled drinking water is false? -
✔✔Bottled water is safer and healthier than are public water supplies
What's the purpose of chlorinating sewage effluent and drinking water? - ✔✔to
kill disease-causing organisms
What's the predominant method of sewage sludge disposal in the U.S. today? -
✔✔Application to farm, garden, or pasture lands
,What do most researchers see as the solution to eliminating the "dead zone" in the
Gulf of Mexico? - ✔✔Sharply reducing fertilizer runoff from agricultural lands in
the upper midwest
What contaminant in drinking water is regulated because of its potential for
causing "blue baby disease"? - ✔✔Nitrates
Waste water pre-treatment programs are mandated for? - ✔✔Industries
discharging effluent into municipal sewer systems
The aim of sewage treatment is to: - ✔✔improve the quality of effluent to the
point that it can be returned to a waterway without causing eutrophication or
endangering public health
Screening and sedimentation to remove the larger suspended solids in sewage
represents what level of sewage treatment? - ✔✔primary treatment
Reports reveal that millions of Americans are exposed to lead in their drinking
water. What is the source of this toxic contaminant? - ✔✔Leaching of lead from
lead pipes or solder in the home plumbing system
, Of the various changes occurring in a lake as it under goes euthropihication, which
is most directly responsible for the loss of high-quality fish? - ✔✔depletion of
dissolved oxygen
If a particular water sample is measured as having a high BOD, what does this
indicate? - ✔✔water is polluted with organic material which will use up the
dissolved oxygen in the water as it decomposes
Euthrophication of a water way can be initiated when which of the following enters
a lake or stream? - ✔✔Phosphates
Why is the Ogallala Aquifer the focus of much concern? - ✔✔This extensive
formation of "fossil water" is being rapidly depleted by heavy withdrawals by
farmers and at one time was expected to last no more than 40 years
Why is desalination of seawater not more widely practiced as a means of
augmenting water supplies? - ✔✔The prodigious energy demands inherent in
desalination technologies make desalted water several times more expensive than
conventional water sources
what statement about water conservation is false? - ✔✔Raising the price of water
delivered to consumers, is not an effective way to reduce demand bc water is a
necessity of life, for which current rates of use cannot safely be reduced.
QUESTIONS WITH 100% CORRECT
ANSWERS { GRADED A+}
What do energy experts at the National Renewable Energy Laboratory say would
be the quickest, easiest, cheapest way to reduce power demand? - ✔✔Adopt new
lighting technologies while phasing out standard incandescent bulbs
What represents a non point source of water pollution? - ✔✔Fallout of airborne
polllutants
Which of the following statements regarding bottled drinking water is false? -
✔✔Bottled water is safer and healthier than are public water supplies
What's the purpose of chlorinating sewage effluent and drinking water? - ✔✔to
kill disease-causing organisms
What's the predominant method of sewage sludge disposal in the U.S. today? -
✔✔Application to farm, garden, or pasture lands
,What do most researchers see as the solution to eliminating the "dead zone" in the
Gulf of Mexico? - ✔✔Sharply reducing fertilizer runoff from agricultural lands in
the upper midwest
What contaminant in drinking water is regulated because of its potential for
causing "blue baby disease"? - ✔✔Nitrates
Waste water pre-treatment programs are mandated for? - ✔✔Industries
discharging effluent into municipal sewer systems
The aim of sewage treatment is to: - ✔✔improve the quality of effluent to the
point that it can be returned to a waterway without causing eutrophication or
endangering public health
Screening and sedimentation to remove the larger suspended solids in sewage
represents what level of sewage treatment? - ✔✔primary treatment
Reports reveal that millions of Americans are exposed to lead in their drinking
water. What is the source of this toxic contaminant? - ✔✔Leaching of lead from
lead pipes or solder in the home plumbing system
, Of the various changes occurring in a lake as it under goes euthropihication, which
is most directly responsible for the loss of high-quality fish? - ✔✔depletion of
dissolved oxygen
If a particular water sample is measured as having a high BOD, what does this
indicate? - ✔✔water is polluted with organic material which will use up the
dissolved oxygen in the water as it decomposes
Euthrophication of a water way can be initiated when which of the following enters
a lake or stream? - ✔✔Phosphates
Why is the Ogallala Aquifer the focus of much concern? - ✔✔This extensive
formation of "fossil water" is being rapidly depleted by heavy withdrawals by
farmers and at one time was expected to last no more than 40 years
Why is desalination of seawater not more widely practiced as a means of
augmenting water supplies? - ✔✔The prodigious energy demands inherent in
desalination technologies make desalted water several times more expensive than
conventional water sources
what statement about water conservation is false? - ✔✔Raising the price of water
delivered to consumers, is not an effective way to reduce demand bc water is a
necessity of life, for which current rates of use cannot safely be reduced.
