Question 1

Why are resources in the ocean more susceptible to overuse than resources on land? Describe some of the steps nations have taken to manage ocean resources.

Accepted Answer

Resources in the ocean are more suscepti...

Question 2

The Grow Appalachia initiative has helped the people of Appalachia increase food security in their region by providing all of the following EXCEPT:

Accepted Answer

A)   Information.
B)   Low-cost inorganic fertilizer and pesticides.
C)   Skill-building programs.
D)   Low-cost seed and tools.
E)   The Grow Appalachia initiative provides all of the above items.

Question 3

What country produces the most genetically modified crops?

Accepted Answer

A)   Germany
B)   Brazil
C)   Canada
D)   United States
E)   France

Question 4

What is bycatch, and why is it an issue of concern for commercial fisheries?

Accepted Answer

Bycatch refers to the organisms captured...

Question 5

Which of the following statements about sustainable agriculture is false?

Accepted Answer

A)   An important goal of sustainable agriculture is to preserve the quality of the agricultural soil.
B)   Sustainable agriculture methods are less damaging to the environment, but have higher associated costs.
C)   Sustainable agriculture relies on beneficial biological processes and environmentally friendly chemicals.
D)   Sustainable agriculture involves diversification of crops and livestock.
E)   Sustainable agriculture is also known as alternative or low-input agriculture.

Question 6

Which of the following fishing practices has been banned by most countries but continues to be used illegally?

Accepted Answer

A)   longlines
B)   bycatch
C)   trawl bag
D)   drift nets
E)   purse-seine nets

Question 7

Sustainable agricultural practices are characterized by all of the following except:

Accepted Answer

A)   crop selection.
B)   water and energy conservation.
C)   monoculture.
D)   use of manure as a fertilizer.
E)   increasing biological diversity to control pests.

Question 8

The decline in genetic diversity within a given variety of crop plant results in loss of:

Accepted Answer

A)   color variations.
B)   flavor differences.
C)   nutritional differences.
D)   size variations.
E)   All of these choices are correct

Question 9

Which of the following is NOT a reason why world grain stocks have decreased in recent years?

Accepted Answer

A)   environmental conditions due to global warming
B)   consumption of beef has increased in China and other developing countries
C)   increased investments in agricultural research
D)   corn yields are increasingly diverted into ethanol production and research
E)   All of these statements are reasons why world grain stocks have decreased

Question 10

Which of the following crops has not been significantly improved by the green revolution?

Accepted Answer

A)   potatoes
B)   wheat
C)   sweet potatoes
D)   rice
E)   corn

Question 11

All of the following are subsistence agriculture practices except:

Accepted Answer

A)   shifting cultivation.
B)   slash-and-burn agriculture.
C)   nomadic herding.
D)   intercropping.
E)   high-input agriculture.

Question 12

Two main reasons that the world grain stocks have dropped in the past few years are:

Accepted Answer

A)   bad weather and increased consumption of animal products.
B)   wars (conflicts)  and political unrest.
C)   increased disease (e.g. AIDS)  and bad weather.
D)   bad weather and wars.
E)   lower grain prices and political unrest.

Question 13

Livestock is an expensive source of food because:

Accepted Answer

A)   it is particularly rich in protein.
B)   of the amount of land area needed to house the animals.
C)   the antibiotics and hormones needed to support high yield are exceedingly expensive.
D)   it is the preferred food source in many developing countries.
E)   animals are inefficient at converting plant food into meat.

Question 14

Compare the benefits and challenges of fishing and aquaculture. Which approach has a greater impact on the environment? Justify your answer.

Accepted Answer

Fishing is like hunting. Fish and other ...

Question 15

The two areas of the world with the greatest food insecurity are:

Accepted Answer

A)   South America and South Asia.
B)   South America and sub-Saharan Africa.
C)   China and sub-Saharan Africa.
D)   South Asia and sub-Saharan Africa.
E)   the Middle East and South Asia.

Question 16

Which of the following is not an environmental problem associated with industrialized agriculture?

Accepted Answer

A)   release of antioxidants
B)   soil erosion
C)   depletion of freshwater resources
D)   disposal of livestock wastes
E)   habitat loss

Question 17

From the farmer's field to the kitchen table, which section of the conventional "food pipeline" contributes the most greenhouse gases?

Accepted Answer

A)   transportation
B)   food production
C)   packaging
D)   marketing
E)   home storage

Question 18

What was the green revolution? Discuss the pros and cons associated with this revolution in agriculture. What additional changes or improvements will be needed to improve agricultural productivity for the future?

Accepted Answer

The green revolution uses modern cultiva...

Question 19

A type of subsistence agriculture which requires large tracts of land and consists of short periods of cultivation followed by lengthened fallow periods:

Accepted Answer

A)   slash-and-burn agriculture
B)   nomadic herding
C)   intercropping
D)   shifting cultivation
E)   Both slash and burn agriculture and shifting cultivation are correct

Question 20

All of the following are among the most important livestock species except:

Accepted Answer

A)   pigs.
B)   turkeys.
C)   goats.
D)   water buffalo.
E)   deer

Exam 18: Food Resources

What was the green revolution? Discuss the pros and cons associated with this revolution in agriculture. What additional changes or improvements will be needed to improve agricultural productivity for the future?

Correct AnswerverifiedThe green revolution uses modern cultiva...View AnswerShow Answer

Which of the following crops has not been significantly improved by the green revolution?

Correct AnswerverifiedShow Answer

The Grow Appalachia initiative has helped the people of Appalachia increase food security in their region by providing all of the following EXCEPT:

Correct AnswerverifiedShow Answer

Which of the following fishing practices has been banned by most countries but continues to be used illegally?

Correct AnswerverifiedShow Answer

Sustainable agricultural practices are characterized by all of the following except:

Correct AnswerverifiedShow Answer

From the farmer's field to the kitchen table, which section of the conventional "food pipeline" contributes the most greenhouse gases?

Correct AnswerverifiedShow Answer

Two main reasons that the world grain stocks have dropped in the past few years are:

Correct AnswerverifiedShow Answer

The two areas of the world with the greatest food insecurity are:

Correct AnswerverifiedShow Answer

Livestock is an expensive source of food because:

Correct AnswerverifiedShow Answer

Compare the benefits and challenges of fishing and aquaculture. Which approach has a greater impact on the environment? Justify your answer.

Correct AnswerverifiedFishing is like hunting. Fish and other ...View AnswerShow Answer

Which of the following statements about sustainable agriculture is false?

Correct AnswerverifiedShow Answer

What country produces the most genetically modified crops?

Correct AnswerverifiedShow Answer

A type of subsistence agriculture which requires large tracts of land and consists of short periods of cultivation followed by lengthened fallow periods:

Correct AnswerverifiedShow Answer

Why are resources in the ocean more susceptible to overuse than resources on land? Describe some of the steps nations have taken to manage ocean resources.

Correct AnswerverifiedResources in the ocean are more suscepti...View AnswerShow Answer

All of the following are subsistence agriculture practices except:

Correct AnswerverifiedShow Answer

Which of the following is NOT a reason why world grain stocks have decreased in recent years?

Correct AnswerverifiedShow Answer

Which of the following is not an environmental problem associated with industrialized agriculture?

Correct AnswerverifiedShow Answer

All of the following are among the most important livestock species except:

Correct AnswerverifiedShow Answer

The decline in genetic diversity within a given variety of crop plant results in loss of:

Correct AnswerverifiedShow Answer

What is bycatch, and why is it an issue of concern for commercial fisheries?

Correct AnswerverifiedBycatch refers to the organisms captured...View AnswerShow Answer

Correct Answer
verified
The green revolution uses modern cultiva...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Fishing is like hunting. Fish and other ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Resources in the ocean are more suscepti...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Bycatch refers to the organisms captured...
View Answer