Question 1

In a septic tank system,which of the following is false?

Accepted Answer

A)  Wastewater is pumped into a settling tank. 
B)  Grease and oil rise to the top in the tank. 
C)  Solids are decomposed by bacteria. 
D)  Bacteria-treated waste is discharged in an absorption field. 
E)  After leaving the absorption field,wastewater is cleaned and can be used again for human consumption. 
A)  Wastewater is pumped into a settling tank. 
B)  Grease and oil rise to the top in the tank. 
C)  Solids are decomposed by bacteria. 
D)  Bacteria-treated waste is discharged in an absorption field. 
E)  After leaving the absorption field,wastewater is cleaned and can be used again for human consumption. E

Question 2

Wetlands,estuaries,mangrove swamps,and coral reefs are examples of ____.

Accepted Answer

A)  coastal environments 
B)  ocean habitats 
C)  groundwater reservoirs 
D)  deltaic deposits. 
E)  pelagic zones 
A)  coastal environments 
B)  ocean habitats 
C)  groundwater reservoirs 
D)  deltaic deposits. 
E)  pelagic zones A

Question 3

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

Accepted Answer

A)  a sewage treatment plant 
B)  an electric power plant 
C)  an active or inactive coal mine 
D)  a logged forest 
E)  a factory 
A)  a sewage treatment plant 
B)  an electric power plant 
C)  an active or inactive coal mine 
D)  a logged forest 
E)  a factory D

Question 4

Which statement about the disadvantages of bottled water is false?

Accepted Answer

A)  Plastic bottles have a lifespan of 100 years in a landfill. 
B)  Most plastic bottles are recycled. 
C)  Enough plastic bottles are discarded annually to circle the Earth 149 times. 
D)  The withdrawal of water to make bottled water is depleting some aquifers. 
E)  The manufacture and transportation of bottles releases toxic chemicals and greenhouse gases. 
A)  Plastic bottles have a lifespan of 100 years in a landfill. 
B)  Most plastic bottles are recycled. 
C)  Enough plastic bottles are discarded annually to circle the Earth 149 times. 
D)  The withdrawal of water to make bottled water is depleting some aquifers. 
E)  The manufacture and transportation of bottles releases toxic chemicals and greenhouse gases.

Question 5

Cultural eutrophication can not be prevented by ____.

Accepted Answer

A)  banning the use of phosphate detergents 
B)  stopping the runoff of fertilizer from agricultural fields 
C)  advanced waste treatment 
D)  harvesting excess weeds 
E)  soil conservation and land-use controls 
A)  banning the use of phosphate detergents 
B)  stopping the runoff of fertilizer from agricultural fields 
C)  advanced waste treatment 
D)  harvesting excess weeds 
E)  soil conservation and land-use controls

Question 6

The invasion by zebra mussels into The Great Lakes is an example of pollution.

Accepted Answer

A) True 
 B)False

Question 7

Though it would be cheaper and as effective to protect watersheds around water sources rather than building treatment facilities,no major city has made the attempt to do so.

Accepted Answer

A) True 
 B)False

Question 8

How long does it take for pollutants to be flushed out of the Great Lakes into the ocean?

Accepted Answer

A)  5 years 
B)  20 years 
C)  50 years 
D)  100 years 
E)  1000 years 
A)  5 years 
B)  20 years 
C)  50 years 
D)  100 years 
E)  1000 years

Question 9

Dead zones are characterized by a lack of ____.

Accepted Answer

A)  phosphorus 
B)  nitrogen 
C)  oxygen 
D)  chlorine 
E)  fecal material 
A)  phosphorus 
B)  nitrogen 
C)  oxygen 
D)  chlorine 
E)  fecal material

Question 10

Eutrophic lakes have murky,highly productive waters located closest to the wetland status in which many clear-water species cannot survive.

Accepted Answer

A) True 
 B)False

Question 11

What is by far the leading cause of water pollution?

Accepted Answer

A)  mining 
B)  factories 
C)  sewage treatment plants 
D)  agriculture activities 
E)  ocean-going shipping 
A)  mining 
B)  factories 
C)  sewage treatment plants 
D)  agriculture activities 
E)  ocean-going shipping

Question 12

Groundwater is primarily stored in underground ____.

Accepted Answer

A)  aquifers 
B)  water tables 
C)  wells 
D)  rivers 
E)  basins 
A)  aquifers 
B)  water tables 
C)  wells 
D)  rivers 
E)  basins

Question 13

The Great Lakes Water Quality Agreement between the U.S.and Canada improved water quality by ____.

Accepted Answer

A)  increasing nitrogen inputs 
B)  upgrading sewage treatment plants 
C)  banning invasive species 
D)  closing beaches 
E)  banning commercial fishing 
A)  increasing nitrogen inputs 
B)  upgrading sewage treatment plants 
C)  banning invasive species 
D)  closing beaches 
E)  banning commercial fishing

Question 14

In cultural eutrophication,fish die from ____.

Accepted Answer

A)  acid deposition 
B)  depletion of oxygen 
C)  toxic substances in the water 
D)  increased sediment reducing habitats 
E)  loss of space 
A)  acid deposition 
B)  depletion of oxygen 
C)  toxic substances in the water 
D)  increased sediment reducing habitats 
E)  loss of space

Question 15

The Great Lakes possess ____% of all the surface fresh water in the United States.

Accepted Answer

A)  35 
B)  45 
C)  55 
D)  75 
E)  95 
A)  35 
B)  45 
C)  55 
D)  75 
E)  95

Question 16

Worldwide,____________________,caused mostly by exposure to polluted water,on average kills a young child every 18 seconds.

Accepted Answer

The answer of Worldwide,____________________,caused mostly by exposure to polluted water,on...

Question 17

The breakdown of biodegradable wastes by bacteria depletes oxygen and may create a(n)____________________.

Accepted Answer

The answer of The breakdown of biodegradable wastes by bacteria...

Question 18

Of the following organisms,what is the group that is least likely to cause disease?

Accepted Answer

A)  bacteria 
B)  protozoa 
C)  algae 
D)  parasitic worms 
E)  viruses 
A)  bacteria 
B)  protozoa 
C)  algae 
D)  parasitic worms 
E)  viruses

Question 19

Climate change contributes to water pollution in some areas by altering the levels of precipitation.

Accepted Answer

A) True 
 B)False

Question 20

Which statement about lakes is true?

Accepted Answer

A)  Stratified layers of lakes are characterized by vertical mixing. 
B)  Stratification increases levels of dissolved oxygen,especially in the bottom layer. 
C)  Lakes are more vulnerable than streams to contamination by plant nutrients,and toxic substances 
D)  Lakes have more flushing than streams. 
E)  Changing of water in lakes takes days to weeks. 
A)  Stratified layers of lakes are characterized by vertical mixing. 
B)  Stratification increases levels of dissolved oxygen,especially in the bottom layer. 
C)  Lakes are more vulnerable than streams to contamination by plant nutrients,and toxic substances 
D)  Lakes have more flushing than streams. 
E)  Changing of water in lakes takes days to weeks.

Exam 20: Water Pollution

In a septic tank system,which of the following is false?

Wetlands,estuaries,mangrove swamps,and coral reefs are examples of ____.

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

Which statement about the disadvantages of bottled water is false?

Cultural eutrophication can not be prevented by ____.

The invasion by zebra mussels into The Great Lakes is an example of pollution.

Though it would be cheaper and as effective to protect watersheds around water sources rather than building treatment facilities,no major city has made the attempt to do so.

How long does it take for pollutants to be flushed out of the Great Lakes into the ocean?

Dead zones are characterized by a lack of ____.

Eutrophic lakes have murky,highly productive waters located closest to the wetland status in which many clear-water species cannot survive.

What is by far the leading cause of water pollution?

Groundwater is primarily stored in underground ____.

The Great Lakes Water Quality Agreement between the U.S.and Canada improved water quality by ____.

In cultural eutrophication,fish die from ____.

The Great Lakes possess ____% of all the surface fresh water in the United States.

Worldwide,____________________,caused mostly by exposure to polluted water,on average kills a young child every 18 seconds.

The breakdown of biodegradable wastes by bacteria depletes oxygen and may create a(n)____________________.

Of the following organisms,what is the group that is least likely to cause disease?

Climate change contributes to water pollution in some areas by altering the levels of precipitation.

Which statement about lakes is true?

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