Question 1

Soil application of certain pesticides reduces the diversity but increases the numbers of soil mesofauna.

Accepted Answer

A) True 
 B)False  True

Question 2

Radon is a chemically inert gas that emanates from certain soils and builds up in confined spaces such as the basements of buildings.

Accepted Answer

A) True 
 B)False  True

Question 3

The amount of a pesticide that hits the target pest is usually _____ of the amount applied to the ecosystem.

Accepted Answer

A) less than 5% 
B) 20 to 25% 
C) 25 to 50% 
D) 50 to 75%E.75 to 95% 
A) less than 5% 
B) 20 to 25% 
C) 25 to 50% 
D) 50 to 75%E.75 to 95% A

Question 4

The final cover on any type of landfill should consist of soil material with rapid permeability and a high rate of infiltration.

Accepted Answer

A) True 
 B)False

Question 5

In the design of a _______ type landfill,evapotranspiration by cover vegetation should be maximized.

Accepted Answer

A) natural attenuation 
B) containment 
C) both A and B 
D) neither A nor B 
A) natural attenuation 
B) containment 
C) both A and B 
D) neither A nor B

Question 6

The United States Environmental Protection Agency regulates the amount of sewage sludge that can be applied on agricultural land by setting limits on ____.

Accepted Answer

A) the concentrations of metals in the sludge to be applied 
B) the rate of metal application to any parcel of land in any one year 
C) the total accumulative amount of metals that can be applied to a parcel of land,regardless of when the metals are applied 
D) all of the above 
E) none of the above 
A) the concentrations of metals in the sludge to be applied 
B) the rate of metal application to any parcel of land in any one year 
C) the total accumulative amount of metals that can be applied to a parcel of land,regardless of when the metals are applied 
D) all of the above 
E) none of the above

Question 7

Soil washing is a commonly used method of bioremediation.

Accepted Answer

A) True 
 B)False

Question 8

In the United States between the 1970s and the 1990s,the level of heavy metals found in municipal sewage sludge ______.

Accepted Answer

A) stayed about the same 
B) decreased substantially 
C) increased substantially 
A) stayed about the same 
B) decreased substantially 
C) increased substantially

Question 9

Clay,especially of the 2:1 types,tends to adsorb larger quantities of organic chemicals per gram than does the organic matter component of soils.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following are considered to be "heavy metals" that can contaminate soils and the food chain?

Accepted Answer

A) cadmium 
B) zinc 
C) lead 
D) copper 
E) all of the above 
A) cadmium 
B) zinc 
C) lead 
D) copper 
E) all of the above

Question 11

Herbicides are generally the most toxic of pesticides to soil organisms.

Accepted Answer

A) True 
 B)False

Question 12

Draining a chromium-contaminated wetland would be likely to immobilize the metal so that environmental chromium toxicity problems would be minimized.

Accepted Answer

A) True 
 B)False

Question 13

Most practical solutions to toxic levels of indoor radon involve ____.

Accepted Answer

A) bioremediation 
B) increased cation exchange 
C) improved ventilation with fresh air 
D) sealing off cracks in basement walls and foundations 
E) both C and D 
A) bioremediation 
B) increased cation exchange 
C) improved ventilation with fresh air 
D) sealing off cracks in basement walls and foundations 
E) both C and D

Question 14

Of the following metals often found in sewage sludge,which would most likely become toxic to farmers' crops if sludge applications exceeded the recommended amounts.

Accepted Answer

A) Cu 
B) Cr 
C) Cd 
D) Pb 
E) Hg 
A) Cu 
B) Cr 
C) Cd 
D) Pb 
E) Hg

Question 15

Except for a very small number of accidental spills,pesticides used in agriculture have not yet been found to contaminate actual groundwater wells.

Accepted Answer

A) True 
 B)False

Question 16

Radionuclides from nuclear power plant accidents and weapons testing pollution get into the food chain primarily by _____.

Accepted Answer

A) leaching to groundwater supplies 
B) uptake from soils into food plants 
C) by atmospheric deposition on plant leaves 
D) cation exchange 
A) leaching to groundwater supplies 
B) uptake from soils into food plants 
C) by atmospheric deposition on plant leaves 
D) cation exchange

Question 17

A soils contaminated with a heavy metal may be bioremediated by ____.

Accepted Answer

A) applying genetically engineered bacteria that can degrade the metal 
B) growing and harvesting plants that take up large quantities of the toxic metal 
C) burying the contaminated soil in a secure landfill 
D) applying a source of carbon and nitrogen to the soil 
E) all of the above 
A) applying genetically engineered bacteria that can degrade the metal 
B) growing and harvesting plants that take up large quantities of the toxic metal 
C) burying the contaminated soil in a secure landfill 
D) applying a source of carbon and nitrogen to the soil 
E) all of the above

Question 18

Phytoremediation is a system by which growing plants are used to decontaminate polluted soils.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following types chemical would be classed as a pesticide?

Accepted Answer

A) herbicides 
B) rodenticides 
C) insecticides 
D) both B and C 
E) all of the above 
A) herbicides 
B) rodenticides 
C) insecticides 
D) both B and C 
E) all of the above

Question 20

Generally an organic chemical is destroyed when it is lost from the soil by volatilization.

Accepted Answer

A) True 
 B)False

Soil application of certain pesticides reduces the diversity but increases the numbers of soil mesofauna.

Radon is a chemically inert gas that emanates from certain soils and builds up in confined spaces such as the basements of buildings.

The amount of a pesticide that hits the target pest is usually _____ of the amount applied to the ecosystem.

The final cover on any type of landfill should consist of soil material with rapid permeability and a high rate of infiltration.

In the design of a _______ type landfill,evapotranspiration by cover vegetation should be maximized.

The United States Environmental Protection Agency regulates the amount of sewage sludge that can be applied on agricultural land by setting limits on ____.

Soil washing is a commonly used method of bioremediation.

In the United States between the 1970s and the 1990s,the level of heavy metals found in municipal sewage sludge ______.

Clay,especially of the 2:1 types,tends to adsorb larger quantities of organic chemicals per gram than does the organic matter component of soils.

Which of the following are considered to be "heavy metals" that can contaminate soils and the food chain?

Herbicides are generally the most toxic of pesticides to soil organisms.

Draining a chromium-contaminated wetland would be likely to immobilize the metal so that environmental chromium toxicity problems would be minimized.

Most practical solutions to toxic levels of indoor radon involve ____.

Of the following metals often found in sewage sludge,which would most likely become toxic to farmers' crops if sludge applications exceeded the recommended amounts.

Except for a very small number of accidental spills,pesticides used in agriculture have not yet been found to contaminate actual groundwater wells.

Radionuclides from nuclear power plant accidents and weapons testing pollution get into the food chain primarily by _____.

A soils contaminated with a heavy metal may be bioremediated by ____.

Phytoremediation is a system by which growing plants are used to decontaminate polluted soils.

Which of the following types chemical would be classed as a pesticide?

Generally an organic chemical is destroyed when it is lost from the soil by volatilization.

The Soils Around Us

Formation of Soils From Parent Materials

Soil Classification

Soil Architecture and Physical Properties

Soil Water: Characteristics and Behavior

Soil and the Hydrologic Cycle

Soil Aeration and Temperature

The Colloidal Fraction: Seat of Soil Chemical and Physical Activity

Soil Acidity

Soils of Dry Regionsalkalinity,salinity and Sodicity

Organisms and Ecology of the Soil

Soil Organic Matter

Nitrogen and Sulfur Economy of Soils

Soil Phosphorus and Potassium

Calcium,magnesium and Trace Elements

Practical Nutrient Management

Soil Erosion and Its Control

Geographic Information About Soils

Prospects for Global Soil Quality As Affected by Human Activities

Filters

Exam 18: Soils and Chemical Pollution

Soil application of certain pesticides reduces the diversity but increases the numbers of soil mesofauna.

Radon is a chemically inert gas that emanates from certain soils and builds up in confined spaces such as the basements of buildings.

The amount of a pesticide that hits the target pest is usually _____ of the amount applied to the ecosystem.

The final cover on any type of landfill should consist of soil material with rapid permeability and a high rate of infiltration.

In the design of a _______ type landfill,evapotranspiration by cover vegetation should be maximized.

The United States Environmental Protection Agency regulates the amount of sewage sludge that can be applied on agricultural land by setting limits on ____.

Soil washing is a commonly used method of bioremediation.

In the United States between the 1970s and the 1990s,the level of heavy metals found in municipal sewage sludge ______.

Clay,especially of the 2:1 types,tends to adsorb larger quantities of organic chemicals per gram than does the organic matter component of soils.

Which of the following are considered to be "heavy metals" that can contaminate soils and the food chain?

Herbicides are generally the most toxic of pesticides to soil organisms.

Draining a chromium-contaminated wetland would be likely to immobilize the metal so that environmental chromium toxicity problems would be minimized.

Most practical solutions to toxic levels of indoor radon involve ____.

Of the following metals often found in sewage sludge,which would most likely become toxic to farmers' crops if sludge applications exceeded the recommended amounts.

Except for a very small number of accidental spills,pesticides used in agriculture have not yet been found to contaminate actual groundwater wells.

Radionuclides from nuclear power plant accidents and weapons testing pollution get into the food chain primarily by _____.

A soils contaminated with a heavy metal may be bioremediated by ____.

Phytoremediation is a system by which growing plants are used to decontaminate polluted soils.

Which of the following types chemical would be classed as a pesticide?

Generally an organic chemical is destroyed when it is lost from the soil by volatilization.

The Soils Around Us

Formation of Soils From Parent Materials

Soil Classification

Soil Architecture and Physical Properties

Soil Water: Characteristics and Behavior

Soil and the Hydrologic Cycle

Soil Aeration and Temperature

The Colloidal Fraction: Seat of Soil Chemical and Physical Activity

Soil Acidity

Soils of Dry Regionsalkalinity,salinity and Sodicity

Organisms and Ecology of the Soil

Soil Organic Matter

Nitrogen and Sulfur Economy of Soils

Soil Phosphorus and Potassium

Calcium,magnesium and Trace Elements

Practical Nutrient Management

Soil Erosion and Its Control

Geographic Information About Soils

Prospects for Global Soil Quality As Affected by Human Activities

Filters