Question 1

Inorganic fertilizers are __________________.

Accepted Answer

A) are either mined or manufactured 
B) less likely to be used on cropland today than they were 100 years ago 
C) less likely to leach from soil than organic fertilizers 
D) used in place of organic fertilizers by farmers who are concerned about surface water and groundwater pollution 
E) applied to cropland in the form of manure and compost 
A) are either mined or manufactured 
B) less likely to be used on cropland today than they were 100 years ago 
C) less likely to leach from soil than organic fertilizers 
D) used in place of organic fertilizers by farmers who are concerned about surface water and groundwater pollution 
E) applied to cropland in the form of manure and compost

Question 2

Researchers at the Malpai Borderlands in southern New Mexico and Arizona have found evidence that __________________.

Accepted Answer

A) the region cannot sustain any level of commercial ranching 
B) ranchers have been planting mesquite to replace lost grasslands 
C) ancient nomadic tribes permanently altered the landscape by settling down and ranching in one area 
D) fire suppression has played a major role in the degradation of the rangeland in the area 
E) desertification has resulted in soil compaction and erosion 
A) the region cannot sustain any level of commercial ranching 
B) ranchers have been planting mesquite to replace lost grasslands 
C) ancient nomadic tribes permanently altered the landscape by settling down and ranching in one area 
D) fire suppression has played a major role in the degradation of the rangeland in the area 
E) desertification has resulted in soil compaction and erosion

Question 3

Overgrazing can result in all of the following EXCEPT __________________.

Accepted Answer

A) desertification 
B) increased water infiltration 
C) the proliferation of weeds 
D) soil erosion 
E) soil compaction 
A) desertification 
B) increased water infiltration 
C) the proliferation of weeds 
D) soil erosion 
E) soil compaction

Question 4

Use the accompanying figure to answer the following question.
-Soil that is 50% clay,20% silt,and 30% sand would be categorized as .

Accepted Answer

A) silty clay 
B) loam 
C) clay loam 
D) clay 
E) silty sandy clay 
A) silty clay 
B) loam 
C) clay loam 
D) clay 
E) silty sandy clay

Question 5

__________________ is the loss of more than 10% of soil productivity in arid areas due to such factors as erosion,soil compaction,overgrazing,and forest removal.

Accepted Answer

A) Stratification 
B) Climatization 
C) Salinization 
D) Alkalinization 
E) Desertification 
A) Stratification 
B) Climatization 
C) Salinization 
D) Alkalinization 
E) Desertification

Inorganic fertilizers are __________________.

Researchers at the Malpai Borderlands in southern New Mexico and Arizona have found evidence that __________________.

Overgrazing can result in all of the following EXCEPT __________________.

Use the accompanying figure to answer the following question. -Soil that is 50% clay,20% silt,and 30% sand would be categorized as .

__________________ is the loss of more than 10% of soil productivity in arid areas due to such factors as erosion,soil compaction,overgrazing,and forest removal.

Science and Sustainability

Earths Physical Systems

Evolution,biodiversity,and Population Ecology

Species Interactions and Community Ecology

Environmental Systems and Ecosystem Ecology

Ethics,economics,and Sustainable Development

Environmental Policy

Human Population

Making Agriculture Sustainable

Biodiversity and Conservation Biology

Forests,forest Management,and Protected Areas

The Urban Environment

Environmental Health and Toxicology

Freshwater Systems and Resources

Marine and Coastal Systems and Resources

Atmospheric Science,air Quality,and Pollution Control

Global Climate Change

Fossil Fuels

Conventional Energy Alternatives

New Renewable Energy Alternatives

Managing Our Waste

Minerals and Mining

Sustainable Solutions

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Exam 9: The Underpinnings of Agriculture

Inorganic fertilizers are __________________.

Researchers at the Malpai Borderlands in southern New Mexico and Arizona have found evidence that __________________.

Overgrazing can result in all of the following EXCEPT __________________.

Use the accompanying figure to answer the following question. -Soil that is 50% clay,20% silt,and 30% sand would be categorized as .

__________________ is the loss of more than 10% of soil productivity in arid areas due to such factors as erosion,soil compaction,overgrazing,and forest removal.

Science and Sustainability

Earths Physical Systems

Evolution,biodiversity,and Population Ecology

Species Interactions and Community Ecology

Environmental Systems and Ecosystem Ecology

Ethics,economics,and Sustainable Development

Environmental Policy

Human Population

Making Agriculture Sustainable

Biodiversity and Conservation Biology

Forests,forest Management,and Protected Areas

The Urban Environment

Environmental Health and Toxicology

Freshwater Systems and Resources

Marine and Coastal Systems and Resources

Atmospheric Science,air Quality,and Pollution Control

Global Climate Change

Fossil Fuels

Conventional Energy Alternatives

New Renewable Energy Alternatives

Managing Our Waste

Minerals and Mining

Sustainable Solutions

Filters