Question 1

What is the purpose of secondary wastewater treatment

Accepted Answer

A) To remove sediment and silt. 
B) To reduce the water's biochemical oxygen demand. 
C) To reduce toxic chemicals and heavy metals. 
D) To kill disease-causing agents. 
A) To remove sediment and silt. 
B) To reduce the water's biochemical oxygen demand. 
C) To reduce toxic chemicals and heavy metals. 
D) To kill disease-causing agents. B

Question 2

Wastewater,including sewage usually undergoes several treatments at a sewage treatment plant.Match the treatment with the process for expected outcome.

Accepted Answer

A) primary treatment: eliminating inorganic and organic compounds by aerating and circulating the wastewater. 
B) tertiary treatment: biologically decomposing suspended organic material. 
C) secondary treatment: reducing phosphorus and nitrogen levels with a filtering system. 
D) primary treatment: removing suspended and floating particles by mechanical processes. 
A) primary treatment: eliminating inorganic and organic compounds by aerating and circulating the wastewater. 
B) tertiary treatment: biologically decomposing suspended organic material. 
C) secondary treatment: reducing phosphorus and nitrogen levels with a filtering system. 
D) primary treatment: removing suspended and floating particles by mechanical processes. D

Question 3

Mercury:

Accepted Answer

A) is a persistent organic toxic compound. 
B) is a persistent inorganic toxic compound. 
C) is a form of thermal pollution. 
D) emissions are strictly regulated by the electrostatic precipitator. 
A) is a persistent organic toxic compound. 
B) is a persistent inorganic toxic compound. 
C) is a form of thermal pollution. 
D) emissions are strictly regulated by the electrostatic precipitator. B

Question 4

What causes salinization

Accepted Answer

A) Overuse of road salts in urbanized areas. 
B) Leaking of ocean water into overused aquifers in coastal areas. 
C) Accumulation of salts in agricultural soils due to repeated irrigation. 
D) Increased evaporation and transpiration in urbanized areas. 
A) Overuse of road salts in urbanized areas. 
B) Leaking of ocean water into overused aquifers in coastal areas. 
C) Accumulation of salts in agricultural soils due to repeated irrigation. 
D) Increased evaporation and transpiration in urbanized areas.

Question 5

Orlando,Florida's low-tech,natural wastewater treatment system relies on which of the following

Accepted Answer

A) A river 
B) Wetlands 
C) A lake 
D) The ocean 
A) A river 
B) Wetlands 
C) A lake 
D) The ocean

Question 6

Suspected endocrine disrupters include:

Accepted Answer

A) sewage waste. 
B) bacteria. 
C) pesticides. 
D) radioactive minerals. 
A) sewage waste. 
B) bacteria. 
C) pesticides. 
D) radioactive minerals.

Question 7

Why are urban areas more likely to flood after heavy precipitation than undeveloped areas

Accepted Answer

A) Buildings and paved roads don't absorb water,so run off is significantly greater in developed areas 
B) Precipitation is usually greater in urbanized areas than in natural areas due to heat islands. 
C) Urbanized areas are almost always built on floodplains and hence are more prone to flooding. 
D) Most urban areas don't have adequate sewer systems to handle the rain. 
A) Buildings and paved roads don't absorb water,so run off is significantly greater in developed areas 
B) Precipitation is usually greater in urbanized areas than in natural areas due to heat islands. 
C) Urbanized areas are almost always built on floodplains and hence are more prone to flooding. 
D) Most urban areas don't have adequate sewer systems to handle the rain.

Question 8

Benefits of dams include all of the following EXCEPT:

Accepted Answer

A) generating electricity. 
B) providing flood control for areas downstream. 
C) increasing habitat quality for native fishes. 
D) providing potential recreation benefits. 
A) generating electricity. 
B) providing flood control for areas downstream. 
C) increasing habitat quality for native fishes. 
D) providing potential recreation benefits.

Question 9

Cities are encouraging individual water conservation by:

Accepted Answer

A) including water charges in the rent. 
B) repairing city water mains and pipes to improve "water accountability". 
C) collecting and storing rain water for redistribution to individuals. 
D) providing economic incentives for installing water saving household fixtures. 
A) including water charges in the rent. 
B) repairing city water mains and pipes to improve "water accountability". 
C) collecting and storing rain water for redistribution to individuals. 
D) providing economic incentives for installing water saving household fixtures.

Question 10

The area bordering a river channel that has the potential to flood is called:

Accepted Answer

A) wetland 
B) drainage basin 
C) floodplain 
D) recharge zone 
A) wetland 
B) drainage basin 
C) floodplain 
D) recharge zone

Question 11

What is the major difference in the fate of precipitation after urbanization

Accepted Answer

A) Evaporation and transpiration decreases 
B) Surface runoff increases. 
C) Ground water infiltration decreases. 
D) All of these choices. 
A) Evaporation and transpiration decreases 
B) Surface runoff increases. 
C) Ground water infiltration decreases. 
D) All of these choices.

Question 12

Which of the following is MOST LIKELY to be considered a point source of water pollution

Accepted Answer

A) A paper mill on the Mississippi River. 
B) A golf course on Lake Mead. 
C) An irrigated farm along the Colorado River. 
D) Acid mine drainage into the Rio Grande River. 
A) A paper mill on the Mississippi River. 
B) A golf course on Lake Mead. 
C) An irrigated farm along the Colorado River. 
D) Acid mine drainage into the Rio Grande River.

Question 13

The steps in purification of drinking water are:

Accepted Answer

A) settling of suspended solids --- filtration - disinfection 
B) primary treatment --- secondary treatment --- disinfection 
C) filtration --- coagulation --- distribution 
D) chlorination --- secondary sedimentation --- tertiary treatment 
A) settling of suspended solids --- filtration - disinfection 
B) primary treatment --- secondary treatment --- disinfection 
C) filtration --- coagulation --- distribution 
D) chlorination --- secondary sedimentation --- tertiary treatment

Question 14

How does saltwater intrusion occur

Accepted Answer

A) Salts accumulate in irrigated soils due to evaporation. 
B) Road salts used in urbanized areas,run off into nearby rivers and streams. 
C) Naturally salty water is released from confined aquifers via artesian wells. 
D) Ocean water moves into freshwater aquifers before they can recharge. 
A) Salts accumulate in irrigated soils due to evaporation. 
B) Road salts used in urbanized areas,run off into nearby rivers and streams. 
C) Naturally salty water is released from confined aquifers via artesian wells. 
D) Ocean water moves into freshwater aquifers before they can recharge.

Question 15

Which property of water presents a drawback in terms of water pollution

Accepted Answer

A) Water's high melting and freezing point. 
B) That water in the form of ice is less dense than liquid water. 
C) Water's high heat capacity (i.e.,ability to absorb\ a great deal of solar heat without substantially increasing in temperature). 
D) Water's ability to be a universal solvent. 
A) Water's high melting and freezing point. 
B) That water in the form of ice is less dense than liquid water. 
C) Water's high heat capacity (i.e.,ability to absorb\ a great deal of solar heat without substantially increasing in temperature). 
D) Water's ability to be a universal solvent.

Question 16

All of the following represent ways in which individuals can reduce water consumption EXCEPT:

Accepted Answer

A) using a dishwasher rather than handwashing dishes. 
B) washing many small loads of laundry. 
C) installing low-flow showerheads. 
D) installing low-flush toilets. 
A) using a dishwasher rather than handwashing dishes. 
B) washing many small loads of laundry. 
C) installing low-flow showerheads. 
D) installing low-flush toilets.

Question 17

Where is the world's largest watershed located

Accepted Answer

A) United States 
B) Brazil 
C) China 
D) Russia 
A) United States 
B) Brazil 
C) China 
D) Russia

Question 18

Which of the following statements regarding freshwater use is TRUE

Accepted Answer

A) It is increasing because,on average,each person is using more water. 
B) It is decreasing because,on average,agriculture is conserving more water. 
C) It is decreasing due to the decline in the global population growth rate. 
D) It is increasing due to improved technology and greater efficiency. 
A) It is increasing because,on average,each person is using more water. 
B) It is decreasing because,on average,agriculture is conserving more water. 
C) It is decreasing due to the decline in the global population growth rate. 
D) It is increasing due to improved technology and greater efficiency.

Question 19

Three-fourths of the world's 200 major watersheds are shared between at least ___ nations.

Accepted Answer

A) two 
B) three 
C) four 
D) five 
A) two 
B) three 
C) four 
D) five

Question 20

Why is thermal pollution a problem for fish

Accepted Answer

A) It reduces the amount of oxygen the water can hold which results in fish kills. 
B) Warm water increases the spread of infectious disease to fish. 
C) It greatly increases sedimentation rates and the silt and sand clogs fish gills. 
D) The heated water kills fish. 
A) It reduces the amount of oxygen the water can hold which results in fish kills. 
B) Warm water increases the spread of infectious disease to fish. 
C) It greatly increases sedimentation rates and the silt and sand clogs fish gills. 
D) The heated water kills fish.

What is the purpose of secondary wastewater treatment

Wastewater,including sewage usually undergoes several treatments at a sewage treatment plant.Match the treatment with the process for expected outcome.

Mercury:

What causes salinization

Orlando,Florida's low-tech,natural wastewater treatment system relies on which of the following

Suspected endocrine disrupters include:

Why are urban areas more likely to flood after heavy precipitation than undeveloped areas

Benefits of dams include all of the following EXCEPT:

Cities are encouraging individual water conservation by:

The area bordering a river channel that has the potential to flood is called:

What is the major difference in the fate of precipitation after urbanization

Which of the following is MOST LIKELY to be considered a point source of water pollution

The steps in purification of drinking water are:

How does saltwater intrusion occur

Which property of water presents a drawback in terms of water pollution

All of the following represent ways in which individuals can reduce water consumption EXCEPT:

Where is the world's largest watershed located

Which of the following statements regarding freshwater use is TRUE

Three-fourths of the world's 200 major watersheds are shared between at least ___ nations.

Why is thermal pollution a problem for fish

The Environmental Challenges We Face

Sustainability and Human Values

Environmental History, Politics, and Economics

Risk Analysis and Environmental Health Hazards

How Ecosystems Work

Ecosystems and Evolution

Human Population Change and the Environment

Air and Air Pollution

Global Atmospheric Changes

The Ocean and Fisheries

Mineral and Soil Resources

Land Resources

Agriculture and Food Resources

Biodiversity and Conservation

Solid and Hazardous Waste

Nonrenewable Energy Resources

Renewable Energy Resources

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Exam 10: Freshwater Resources and Water Pollution

What is the purpose of secondary wastewater treatment

Wastewater,including sewage usually undergoes several treatments at a sewage treatment plant.Match the treatment with the process for expected outcome.

Mercury:

What causes salinization

Orlando,Florida's low-tech,natural wastewater treatment system relies on which of the following

Suspected endocrine disrupters include:

Why are urban areas more likely to flood after heavy precipitation than undeveloped areas

Benefits of dams include all of the following EXCEPT:

Cities are encouraging individual water conservation by:

The area bordering a river channel that has the potential to flood is called:

What is the major difference in the fate of precipitation after urbanization

Which of the following is MOST LIKELY to be considered a point source of water pollution

The steps in purification of drinking water are:

How does saltwater intrusion occur

Which property of water presents a drawback in terms of water pollution

All of the following represent ways in which individuals can reduce water consumption EXCEPT:

Where is the world's largest watershed located

Which of the following statements regarding freshwater use is TRUE

Three-fourths of the world's 200 major watersheds are shared between at least ___ nations.

Why is thermal pollution a problem for fish

The Environmental Challenges We Face

Sustainability and Human Values

Environmental History, Politics, and Economics

Risk Analysis and Environmental Health Hazards

How Ecosystems Work

Ecosystems and Evolution

Human Population Change and the Environment

Air and Air Pollution

Global Atmospheric Changes

The Ocean and Fisheries

Mineral and Soil Resources

Land Resources

Agriculture and Food Resources

Biodiversity and Conservation

Solid and Hazardous Waste

Nonrenewable Energy Resources

Renewable Energy Resources

Filters