Question 1

Which of the following is an input control over cultural eutrophication?

Accepted Answer

A)  planting underwater plants near sewage discharge sites 
B)  putting fences around stockyards 
C)  banning the use of phosphate detergents 
D)  harvesting excess weeds 
A)  planting underwater plants near sewage discharge sites 
B)  putting fences around stockyards 
C)  banning the use of phosphate detergents 
D)  harvesting excess weeds

Question 2

_____________________________________________ uses biological methods such as digestion.

Accepted Answer

Secondary

Question 3

What is the only effective way to protect groundwater?

Accepted Answer

A)  treat all water from underground sources 
B)  use monitoring wells 
C)  prevent contamination 
D)  cover all wells carefully 
A)  treat all water from underground sources 
B)  use monitoring wells 
C)  prevent contamination 
D)  cover all wells carefully

Question 4

What is one effect of waste heat?

Accepted Answer

A)  decreased water quality 
B)  oxygen-depleted water 
C)  algae blooms 
D)  increased salinity 
A)  decreased water quality 
B)  oxygen-depleted water 
C)  algae blooms 
D)  increased salinity

Question 5

Detergents from household cleaners can threaten human health by causing nervous system damage and reproductive disorders.

Accepted Answer

A) True 
 B)False

Question 6

What percentage of the world's population lives on or within 260 kilometres of a coastline?

Accepted Answer

A)  about 50% 
B)  about 40% 
C)  about 30% 
D)  about 20% 
A)  about 50% 
B)  about 40% 
C)  about 30% 
D)  about 20%

Question 7

What is a good indicator of water quality?

Accepted Answer

A)  the number of coliform bacteria in the water body 
B)  the number of ducks in the water body 
C)  the number of fish in the water body 
D)  the number of snakes in the water body 
A)  the number of coliform bacteria in the water body 
B)  the number of ducks in the water body 
C)  the number of fish in the water body 
D)  the number of snakes in the water body

Question 8

Human activities can greatly accelerate ____________________ by increasing the rate at which nutrients and organic substances enter aquatic ecosystems from the surrounding watersheds.

Accepted Answer

The answer of Human activities can greatly accelerate ____________________ by...

Question 9

Which statement characterizes differences between lakes and rivers related to water pollution?

Accepted Answer

A)  Acid deposition and fallout represent more serious hazards to lakes than rivers. 
B)  Eutrophication is a natural increase of water pH. 
C)  Rivers are more vulnerable than lakes to contamination by plant nutrients, oil, toxins, and pesticides. 
D)  Natural processes are the main cause for cultural eutrophication in rivers but not in lakes. 
A)  Acid deposition and fallout represent more serious hazards to lakes than rivers. 
B)  Eutrophication is a natural increase of water pH. 
C)  Rivers are more vulnerable than lakes to contamination by plant nutrients, oil, toxins, and pesticides. 
D)  Natural processes are the main cause for cultural eutrophication in rivers but not in lakes.

Question 10

What is the origin of over half of the total mass of pollutants entering streams and lakes?

Accepted Answer

A)  nonpoint pollution from agriculture 
B)  point pollution from industrial plants 
C)  point pollution from sewage treatment plants 
D)  nonpoint pollution from roadside runoff 
A)  nonpoint pollution from agriculture 
B)  point pollution from industrial plants 
C)  point pollution from sewage treatment plants 
D)  nonpoint pollution from roadside runoff

Question 11

What is the most ecologically responsible way to dispose of sewage sludge?

Accepted Answer

A)  deposit it into conventional landfills 
B)  dump it into the deep trenches of the ocean 
C)  treat it with heat to kill harmful bacteria and remove toxic metals, and then use it as fertilizer 
D)  incinerate it 
A)  deposit it into conventional landfills 
B)  dump it into the deep trenches of the ocean 
C)  treat it with heat to kill harmful bacteria and remove toxic metals, and then use it as fertilizer 
D)  incinerate it

Question 12

The Exxon Valdez oil spill best illustrates point source water pollution.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following shows the correct relationship?

Accepted Answer

A)  Slow-flowing rivers are less susceptible to pollutants than fast-flowing streams. 
B)  The width and depth of the oxygen sag curve depend on water volume and flow rate. 
C)  The width and depth of the oxygen sag curve depend on river width and bottom substrate. 
D)  Streams can never recover from degradable pollutants if they are overloaded. 
A)  Slow-flowing rivers are less susceptible to pollutants than fast-flowing streams. 
B)  The width and depth of the oxygen sag curve depend on water volume and flow rate. 
C)  The width and depth of the oxygen sag curve depend on river width and bottom substrate. 
D)  Streams can never recover from degradable pollutants if they are overloaded.

Question 14

Surface runoff from a watershed will become groundwater when it infiltrates the ground.

Accepted Answer

A) True 
 B)False

Question 15

Which oil company owned the oil tanker that spilled a large amount of oil off the coast of Alaska in 1989?

Accepted Answer

A)  Sunoco 
B)  Alaska 
C)  Gulf 
D)  ExxonMobil 
A)  Sunoco 
B)  Alaska 
C)  Gulf 
D)  ExxonMobil

Question 16

Developing countries dump the majority of their untreated sewage directly into freshwater ecosystems.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is a chemical method for cleaning up oil spills?

Accepted Answer

A)  coagulating agents 
B)  floating booms 
C)  vacuuming skimmer boats 
D)  absorbent pads 
A)  coagulating agents 
B)  floating booms 
C)  vacuuming skimmer boats 
D)  absorbent pads

Question 18

What is the most immediate problem encountered by seabirds coated with oil?

Accepted Answer

A)  loss of buoyancy and insulation, causing death from exposure 
B)  immediate death 
C)  poisoning due to ingestion of oil 
D)  vulnerability to predators 
A)  loss of buoyancy and insulation, causing death from exposure 
B)  immediate death 
C)  poisoning due to ingestion of oil 
D)  vulnerability to predators

Question 19

Water pollution may interfere with the ability of organisms to find mates or food by scent.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is a nonpoint source of water pollution?

Accepted Answer

A)  a logged area 
B)  a coal mine 
C)  a sewage treatment plant 
D)  an electric power plant 
A)  a logged area 
B)  a coal mine 
C)  a sewage treatment plant 
D)  an electric power plant

Exam 22: Water Pollution

Which of the following is an input control over cultural eutrophication?

_____________________________________________ uses biological methods such as digestion.

What is the only effective way to protect groundwater?

What is one effect of waste heat?

Detergents from household cleaners can threaten human health by causing nervous system damage and reproductive disorders.

What percentage of the world's population lives on or within 260 kilometres of a coastline?

What is a good indicator of water quality?

Human activities can greatly accelerate ____________________ by increasing the rate at which nutrients and organic substances enter aquatic ecosystems from the surrounding watersheds.

Which statement characterizes differences between lakes and rivers related to water pollution?

What is the origin of over half of the total mass of pollutants entering streams and lakes?

What is the most ecologically responsible way to dispose of sewage sludge?

The Exxon Valdez oil spill best illustrates point source water pollution.

Which of the following shows the correct relationship?

Surface runoff from a watershed will become groundwater when it infiltrates the ground.

Which oil company owned the oil tanker that spilled a large amount of oil off the coast of Alaska in 1989?

Developing countries dump the majority of their untreated sewage directly into freshwater ecosystems.

Which of the following is a chemical method for cleaning up oil spills?

What is the most immediate problem encountered by seabirds coated with oil?

Water pollution may interfere with the ability of organisms to find mates or food by scent.

Which of the following is a nonpoint source of water pollution?

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