Question 1

ZONES
  
-Which letter in the diagram corresponds to the zone in which the water needs time to replenish oxygen and must have an adequate flow rate in order to accomplish this?

Accepted Answer

The answer of ZONES
  
-Which letter in the diagram...

Question 2

Groundwater's cold temperature slows down the chemical reactions that decompose waste material.

Accepted Answer

A) True 
 B)False

Question 3

What is the cause of the majority of oil pollution in the ocean?

Accepted Answer

A)  tanker accidents 
B)  runoff from land 
C)  blowouts (rupture of a borehole of an oil rig in the ocean) 
D)  environmental terrorism 
A)  tanker accidents 
B)  runoff from land 
C)  blowouts (rupture of a borehole of an oil rig in the ocean) 
D)  environmental terrorism

Question 4

The excess nitrogen associated with a(n)_________________________ can cause extensive fish kills,shellfish contamination,and severe respiratory irritation for humans living nearby.

Accepted Answer

The answer of The excess nitrogen associated with a(n)_________________________ can...

Question 5

What has reduced since the massive pollution control program for the Great Lakes was instituted in 1972?

Accepted Answer

A)  algal blooms 
B)  the amount of fishing (sport and commercial) 
C)  swimming 
D)  the dissolved oxygen level 
A)  algal blooms 
B)  the amount of fishing (sport and commercial) 
C)  swimming 
D)  the dissolved oxygen level

Question 6

Which strategy can prevent water from being polluted by oil?

Accepted Answer

A)  not requiring double hulls on oil tankers 
B)  prohibiting oil drilling in ecologically sensitive areas 
C)  instituting a national energy policy based on increasing reliance on fossil fuels 
D)  drilling closer to shore 
A)  not requiring double hulls on oil tankers 
B)  prohibiting oil drilling in ecologically sensitive areas 
C)  instituting a national energy policy based on increasing reliance on fossil fuels 
D)  drilling closer to shore

Question 7

PRIMARY AND SECONDARY SEWAGE TREATMENT
  
-Which letter in the diagram corresponds to the point at which all the sludge is combined before being dried?

Accepted Answer

The answer of PRIMARY AND SECONDARY SEWAGE TREATMENT
  
-Which...

Question 8

Which Great Lake was first to show intense effects of water pollution?

Accepted Answer

A)  Lake Superior 
B)  Lake Ontario 
C)  Lake Huron 
D)  Lake Erie 
A)  Lake Superior 
B)  Lake Ontario 
C)  Lake Huron 
D)  Lake Erie

Question 9

Which element do authorities try to limit in pollution prevention approaches in freshwater lake ecosystems?

Accepted Answer

A)  calcium 
B)  sulphur 
C)  phosphorus 
D)  nitrogen 
A)  calcium 
B)  sulphur 
C)  phosphorus 
D)  nitrogen

Question 10

PRIMARY AND SECONDARY SEWAGE TREATMENT
  
-Which letter in the diagram corresponds to the point at which activated sludge settles out in the biological process of sewage treatment?

Accepted Answer

The answer of PRIMARY AND SECONDARY SEWAGE TREATMENT
  
-Which...

Question 11

To which category do nitrates and phosphates belong?

Accepted Answer

A)  organic plant nutrients 
B)  disease-causing agents 
C)  oxygen-demanding wastes 
D)  plant nutrients 
A)  organic plant nutrients 
B)  disease-causing agents 
C)  oxygen-demanding wastes 
D)  plant nutrients

Question 12

Water pollution threatens wildlife but not the health of human beings.

Accepted Answer

A) True 
 B)False

Question 13

Which organisms are least likely to be killed by heavy oil components?

Accepted Answer

A)  crabs 
B)  clams 
C)  marine birds 
D)  oysters 
A)  crabs 
B)  clams 
C)  marine birds 
D)  oysters

Question 14

PRIMARY AND SECONDARY SEWAGE TREATMENT
  
-Which letter in the diagram corresponds to the point at which suspended solids settle out as sludge during the physical process of sewage treatment?

Accepted Answer

The answer of PRIMARY AND SECONDARY SEWAGE TREATMENT
  
-Which...

Question 15

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

Accepted Answer

A)  a livestock feedlot 
B)  urban land 
C)  cropland 
D)  an offshore oil well 
A)  a livestock feedlot 
B)  urban land 
C)  cropland 
D)  an offshore oil well

Question 16

What influences oxygen levels in the water?

Accepted Answer

A)  Sewage run-off has little adverse effect on oxygen levels. 
B)  Inorganic nutrients such as fertilizers increase oxygen levels. 
C)  Organic wastes reduce the amount of oxygen in the water supply. 
D)  Heat can increase dissolved oxygen and make fish less vulnerable to disease. 
A)  Sewage run-off has little adverse effect on oxygen levels. 
B)  Inorganic nutrients such as fertilizers increase oxygen levels. 
C)  Organic wastes reduce the amount of oxygen in the water supply. 
D)  Heat can increase dissolved oxygen and make fish less vulnerable to disease.

Question 17

What decreases photosynthesis in bodies of water?

Accepted Answer

A)  sediment or suspended matter 
B)  heat 
C)  inorganic plant nutrients 
D)  disease-causing organisms 
A)  sediment or suspended matter 
B)  heat 
C)  inorganic plant nutrients 
D)  disease-causing organisms

Question 18

Which strategy is NOT likely to protect groundwater?

Accepted Answer

A)  using advanced sewage treatment 
B)  monitoring aquifers near landfills and underground tanks 
C)  banning disposal of hazardous wastes in sanitary landfills and deep-injection wells 
D)  requiring liability insurance for old and new underground tanks 
A)  using advanced sewage treatment 
B)  monitoring aquifers near landfills and underground tanks 
C)  banning disposal of hazardous wastes in sanitary landfills and deep-injection wells 
D)  requiring liability insurance for old and new underground tanks

Question 19

Which statement accurately describes the sensitivity of a lake to various factors?

Accepted Answer

A)  Lakes less vulnerable to pollution than streams because of flushing and larger volumes of water. 
B)  As lake water temperature decreases, oxygen levels decrease. 
C)  Lakes are more vulnerable than streams to contamination by plant nutrients, oil, pesticides, and toxic substances that can destroy bottom life. 
D)  Stratification increases levels of dissolved oxygen in lakes, especially in the bottom layer. 
A)  Lakes less vulnerable to pollution than streams because of flushing and larger volumes of water. 
B)  As lake water temperature decreases, oxygen levels decrease. 
C)  Lakes are more vulnerable than streams to contamination by plant nutrients, oil, pesticides, and toxic substances that can destroy bottom life. 
D)  Stratification increases levels of dissolved oxygen in lakes, especially in the bottom layer.

Question 20

Which stage of cultural eutrophication occurs last?

Accepted Answer

A)  algae blooms 
B)  increase in aerobic bacteria 
C)  fish kills 
D)  increase in anaerobic bacteria 
A)  algae blooms 
B)  increase in aerobic bacteria 
C)  fish kills 
D)  increase in anaerobic bacteria

Exam 22: Water Pollution

ZONES -Which letter in the diagram corresponds to the zone in which the water needs time to replenish oxygen and must have an adequate flow rate in order to accomplish this?

Groundwater's cold temperature slows down the chemical reactions that decompose waste material.

What is the cause of the majority of oil pollution in the ocean?

The excess nitrogen associated with a(n)_________________________ can cause extensive fish kills,shellfish contamination,and severe respiratory irritation for humans living nearby.

What has reduced since the massive pollution control program for the Great Lakes was instituted in 1972?

Which strategy can prevent water from being polluted by oil?

PRIMARY AND SECONDARY SEWAGE TREATMENT -Which letter in the diagram corresponds to the point at which all the sludge is combined before being dried?

Which Great Lake was first to show intense effects of water pollution?

Which element do authorities try to limit in pollution prevention approaches in freshwater lake ecosystems?

PRIMARY AND SECONDARY SEWAGE TREATMENT -Which letter in the diagram corresponds to the point at which activated sludge settles out in the biological process of sewage treatment?

To which category do nitrates and phosphates belong?

Water pollution threatens wildlife but not the health of human beings.

Which organisms are least likely to be killed by heavy oil components?

PRIMARY AND SECONDARY SEWAGE TREATMENT -Which letter in the diagram corresponds to the point at which suspended solids settle out as sludge during the physical process of sewage treatment?

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

What influences oxygen levels in the water?

What decreases photosynthesis in bodies of water?

Which strategy is NOT likely to protect groundwater?

Which statement accurately describes the sensitivity of a lake to various factors?

Which stage of cultural eutrophication occurs last?

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