Which of the following is not a problem associated with the use of the Colorado River's water?

The river gets most of its water from mountain snow melt.

Biochemical Oxygen Demand is a measure of

amount of O2 microorganisms need to decompose waste

Farmers can reduce agricultural runoff by all of the following, except

switching from row crops to animal feedlots

Which of the following contrasts between confined and unconfined aquifers is correct?

confined aquifers are more rapidly recharged

Which would be an indication that water was contaminated by human waste?

high levels of nitrogen and phosphorous and high BOD

Heavy metals are considered pollutants because

they are endocrine disruptors & bioaccumulate in fat

Which of the following statements about non point source pollution is not correct?

originates from a distinct source such as a pipe or tank

The most common problem encountered by seabirds coated with oil is

loss of buoyancy & insulation, causing deaths from exposure

Two major human activities that have contributed to flooding

draining and building on wetlands, removing vegetation

Which is the least likely environmental consequence of building hydroelectric dams?

dams increase the risk of predation

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APES Water Resources & Pollution

75 termsStudBud Administration144 plays

basic water resources and water pollution

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Questions 75

Answers

1
Which of the following is not a problem associated with the use of the Colorado River's water?
Water seldom makes it to the mouth of the river.
The river does not have much of a flow considering its size.
It includes some of the driest areas in the United States.
The river gets most of its water from mountain snow melt.
2
What law protects lakes, rivers, and coastal waters?
Clean Water Act
Water Quality Act
Safe Drinking Water Act
3
Turbidity tests measure this
fecal coliform
sediment load
conductivity
dissolved oxygen
4
Biochemical Oxygen Demand is a measure of
the amount of organic waste in water
amount of oxygen in water
amount of O2 microorganisms need to decompose waste
amount of O2 consumed by vegetation
5
Contaminated water stays contaminated because
slow moving
low bacteria population
bacteria growth at low temperatures
low dissolved oxygen levels
6
inorganic substance naturally in rocks, soluble in groundwater, toxic at low concentrations
lead
mercury
PCBs
arsenic
7
Which of the following is not a goal of dams and reservoirs?
provide recreational activities
clean the water
generate electricity
supply water for cities and agriculture
8
What is the largest drainage basin in the U.S.?
St. Lawrence
Mississippi
Columbia
Colorado
9
Best way to eliminate dead zones in coastal waters
all of these
mandate low phosphate detergents
control sewage treatment overflow
reduce fertilizer runoff
10
A test of the total number of e. coli bacteria in a body of water
DO
pH
BOD
fecal coliform
11
What is the process by which a toxin becomes more concentrated as it moves up the food chain?
biomagnification
precipitation
evaporation
bioaccumulation
12
Farmers can reduce agricultural runoff by all of the following, except
planting buffer zones between cultivated lands and water
keeping cropland covered with vegetation
using no fertilizer on steeply sloped land
switching from row crops to animal feedlots
13
According to water resource experts, the main cause of water waste is
toilet flushing
long showers
cheap prices
leakage
14
What percentage of Earth's water is freshwater?
50
10
3
97
15
Plant nutrients such as nitrates and phosphorus are classified as water pollutants because they
react with water to produce toxic compounds
.increase the growth of algae
are dangerous to aquatic organisms
reduce the dissolved oxygen in water
16
About 10% of people in the U.S. depend on this for drinking, irrigation and electricity
Colorado River
Ogallala Aquifer
Mono Lake
Ohio River
17
Which is not associated with desalination
reverse osmosis
microfiltration
distillation
grit chamber filtration
18
Streams are able to recover most quickly when
.the waste is non degradable
the waste is biodegradable
drought or water diversions divert the stream's flow
the stream is dammed
19
The area of land through which water percolates to become groundwater is a
recharge zone
river system
aquifer
watershed
20
biggest contributor to deterioration of water quality
industrial plants
power plants
agricultural runoff
sewage plants
21
A test that measures the level of nutrients that come from fertilizer runoff
phosphates
turbidity
pH
nitrates
22
This drainage basin has been affected the most by irrigation projects
Columbia
Mississippi
Great Lakes
Colorado
23
Most of the freshwater on earth is found
in ice
underground
in lakes
in oceans and seas
24
What two processes are involved in natural water purification?
infiltration and evaporation
infiltration and runoff
condensation and precipitation
precipitation and evaporation
25
The greatest use of water globally is used for
agriculture
recreation
industry
residential use
26
All of the following are common methods used to cleanup oil spills except
incineration
absorbent pads
floating booms
skimmer boats
27
The greatest single source of water use in homes is from
leaking faucets and pipes
irrigation of lawn and gardens
laundry
flushing of toilets
28
Which event brought attention to industrial waste in U.S. rivers
Dead zone in Gulf of Mexico
The Cuyahoga River Fire
pollutant levels in lake Eerie in 1980
Reduced fish populations in the Thames
29
Removing dissolved salts from ocean water
salt intrusion
eutrophication
percolation
desalination
30
The sinking of land due to over pumping of groundwater
overdraft
aquifer
subsidence
intrusion
31
Underground caverns and porous layers of bedrock
water table
aquifers
fault lines
zone of saturation
32
A disease causing organism
bacteria
virus
pathogen
vector
33
All are ecological services provided by marine ecosystems except
nutrient cycling
ground water recharge
climate regulation
waste treatment
34
Which of the following is not one of the top 3 causes of water pollution?
mining
municipal
agriculture
industry
35
Which of the following contrasts between confined and unconfined aquifers is correct?
only unconfined aquifers are overlain by impermeable rock
only confined aquifers can produce artesian wells
confined aquifers are more rapidly recharged
only unconfined aquifers can be drilled for wells
36
The process of secondary treatment at a sewage treatment plant can best be described as
physical separation
biological separation
chemical separation
37
downward movement of water through the soil
transpiration
precipitation
infiltration
sublimation
38
Which would be an indication that water was contaminated by human waste?
low BOD, low level of nutrients like nitrogen or phosphorous
low levels of nitrogen & phosphorous, zero fecal coliform
high levels of nitrogen and phosphorous and high BOD
low BOD and fecal coliform count of zero
39
Heavy metals are considered pollutants because
they are man-made and persist in the water for a long time
they produce oxygen demanding waste
they disrupt photosynthesis and the food web
they are endocrine disruptors & bioaccumulate in fat
40
Which of the following statements about non point source pollution is not correct?
results from rain or snowmelt moving over ground
more difficult to control, measure, and regulate
includes sediment from improperly managed construction sites
originates from a distinct source such as a pipe or tank
41
The most common problem encountered by seabirds coated with oil is
Immediate death
loss of buoyancy & insulation, causing deaths from exposure
poisoning by taking in the oil internally
vulnerability to predators
42
when more water is withdrawn from an aquifer than is recharged, the following can happen
subsidence
all of those listed can occur
saltwater intrusion
water table lowers
43
Why do rivers meander?
to erode more land
to lose energy
to find the path of least resistance
to move more water
44
Two major human activities that have contributed to flooding
construction of dams
draining and building on wetlands
irrigation
removing vegetation
45
water that falls as rain, sleet, or snow
persperation
precipitation
evaporation
transpiration
46
when fresh and saline ground water move inland and fill void in aquifers
overdraft
saltwater intrusion
aquifer
subsidence
47
Which of the following statements about industrial use of water is not correct?
it is becoming less efficient
it is important to generate electricity
it is used to create steam
it is used to refine metals
48
Excessive heat pollutants come from
fossil fuels
biodegradable decay
power plants
sediments
49
Which is the least likely environmental consequence of building hydroelectric dams?
dams increase silting downstream
dams change water temperature downstream
dams increase the risk of predation
dams decrease water flow downstream
50
removing more water than an aquifer can recharge it
subsidence
sublimation
overdraft
intrusion
51
Top of the zone of saturation-- influenced by recharge and removal of water
zone of leaching
aquifer
water table
aeration layer
52
During what step of the treatment process is raw sludge created?
secondary
tertiary
primary
53
Plant nutrients are pollutants because they
increase algae growth
react with water
dangerous to aquatic organisms
reduce dissolved oxygen
54
World's largest dam on the Yangtze river is in
China
Japan
India
Indonesia
55
This is the measure that can tell the most about the overall quality of a surface water source.
sediment load
dissolved oxygen concentration
plant nutrients such as nitrates and phosphates
bacterial count
56
The process of primary treatment at a sewage treatment plant can best be described as
physical separation
disinfection
biological separation
chemical separation
57
The term subsidence refers to
accumulation of silt behind a dam
intrusion of salt water into a freshwater aquifer
failure of the groundwater supply
.sinking of ground when water has been withdrawn
58
The lack of sufficient water to meet the needs of the people in a country or region is called
water shortage
hydrological poverty
water deficit
59
Which of these does not happen in secondary sewage treatment?
removes all phosphates nitrates and heavy metals
kills pathogenic bacteria
removes most of the biodegradable pollutants
it produces oxygen
60
Which is a preventative method of reducing cultural eutrophication?
use of sewage treatment plants
harvesting excess weeds
increasing use of fertilizers on croplands
use of phosphate detergents
61
Heavy metals are pollutants because
they are unsightly
they are endocrine disrupters
they disrupt photosynthesis
produce oxygen demanding waste
62
the oxygen sag curve is most likely to be most severe in
Summer
Winter
Fall
Spring
63
What happened to most of the oil in the Exxon Valdez oil spill in 1989?
sank into the ground
evaporated into the air
biodegraded
cleaned up by Exxon
64
Area of the U.S. predicted to have extended periods of drought
Northeast
Southeast
Southwest
Midwest
65
What is the source of the hypoxic zone in the Gulf of Mexico?
dams in the Pacific northwest
irrigation water in the southwest
shipping boats in the Great Lakes
fertilizer runoff from the midwest
66
Cause of cultural eutrophication
dissolved oxygen
bacteria
sediments
plant nutrients
67
All of the following are non chemical forms of water pollution except
sediments
thermal pollution
solid waste or garbage
industrial waste
68
Which of these is not covered under the Clean Water Act?
sewage treatment plants
non-point sources of water pollution
waste discharges from industrial plants
waste heat discharges from nuclear power plants
69
As land is developed and trees are removed, there is ___ infiltration and ___ runoff.
less, less
more, less
more, more
less, more
70
As water evaporates, what happens to the minerals in the water?
they evaporate with the water
their chemical composition changes
they are left behind
they change their state of matter
71
Thermal pollution usually most directly affects
pH
DO
temperature
BOD
72
Primary sewage treatment is used to remove:
both biodegradable and non biodegradable solids
disease causing bacteria
non-biodegradable solids
biodegradable solids
73
Methods that have the greatest impact on reducing irrigation water waste
organic farming
night irrigation
polyculture
center pivot sprinklers
74
If water is potable, then it is
salty
drinkable
sediment-filled
able to be carried
75
All are true of what happens to the bi-products sewage treatments except
piped back in to drinking supply
landfill cover
cropland fertilizer
methane

APES Water Resources & Pollution Flashcards | StudBud