Question 1

Undernourished parents often raise children who are undernourished because the parents

Accepted Answer

A)  transfer genetic deficiencies to their children.
B)  do not know any better.
C)  cannot afford to feed their children properly.
D)  do not have access to information about nutrition.
E)  All of these are reasons for the vicious cycle.F) C) and D)
G) A) and E)

Question 2

The USDA estimates ________ percent of conventionally grown foods are contaminated with pesticide residue.

Accepted Answer

A)  11
B)  23
C)  34
D)  58
E)  73F) B) and D)
G) B) and C)

Question 3

Soil organisms usually stay ________ the soil.

Accepted Answer

A)  deep below the surface of
B)  near the middle of
C)  close to the surface of
D)  spread uniformly throughout
E)  About half stay close to the surface and the other half stay deep below the surface of the soil.F) C) and D)
G) A) and B)

Question 4

How is food security related to environmental factors?

Accepted Answer

A)  In areas where subsistence farming is the major source of nutrition,severe drought,flood,or insect outbreaks can destroy food crops.
B)  In high poverty areas,families have less buying power for nutritious food.
C)  When programs to support purchasing nutritious food are eliminated,families struggle to secure enough nutritious food.
D)  Within families,there can be unequal food security with women and children receiving the poorest diet.
E)  When unemployment is high,food security decreases.F) B) and D)
G) B) and E)

Question 5

Waterlogging results from

Accepted Answer

A)  toxic metal accumulation.
B)  excessive irrigation.
C)  excessive plowing.
D)  high evaporation processes.
E)  natural water erosion processes.F) A) and C)
G) A) and E)

Question 6

High responder crops of the green revolution produce tremendous yields

Accepted Answer

A)  even in severe drought conditions.
B)  with primitive farming techniques and no chemical use.
C)  in response to fertilizers,pesticides,and irrigation.
D)  in all conditions where standard crops fail.
E)  in response to fertilizers,pesticides,and irrigation and only "good" yields in less than ideal situations.F) A) and D)
G) A) and C)

Question 7

Genetically modified organisms (GMOs)are made by taking bits of DNA from different sources to create desired characteristics in an organism.

Accepted Answer

A) True 
 B)False

Question 8

All are common modern agricultural methods,except

Accepted Answer

A)  aquaculture farms.
B)  plowing with machines.
C)  irrigating with drip systems.
D)  using chemical fertilizers.
E)  plowing fields.F) C) and E)
G) B) and C)

Question 9

Contour plowing and strip farming are methods designed to

Accepted Answer

A)  prevent weed spreading.
B)  improve plowing efficiency.
C)  improve harvesting efficiency.
D)  prevent water and soil loss.
E)  make farms more attractive.F) All of the above
G) A) and B)

Question 10

Wind erosion is most likely to cause problems in

Accepted Answer

A)  forested grazing lands on high mountains.
B)  open,arid regions.
C)  fertile river bottoms with annual floods.
D)  agricultural regions in the far north.
E)  protected,arid region.F) B) and E)
G) A) and B)

Question 11

Which is a disadvantage of conservation tillage methods?

Accepted Answer

A)  increased irrigation requirements
B)  less efficient use of fertilizer
C)  increased pests and weeds
D)  decreased crop yields
E)  None of these are correct.F) B) and C)
G) A) and C)

Question 12

More than 70% of all soybeans,corn,and cotton grown in the United States are genetically modified.

Accepted Answer

A) True 
 B)False

Question 13

Which of these is not a benefit found with reduced tillage farming?

Accepted Answer

A)  water conservation
B)  soil preservation
C)  increased crop yields
D)  soil aeration and loosening
E)  decreased insects and weedsF) B) and D)
G) None of the above

Question 14

Alfalfa and clover are two legumes commonly planted as cover crops after the cash crop is harvested.Besides providing roots that will help keep soil in place,what would make these plants good cover crops?

Accepted Answer

A)  Being legumes,they have a symbiosis with nitrogen-fixing bacteria to add nitrogen to the soil.
B)  They are easily mowed,which adds less work to the farmers in the spring.
C)  Their flowers attract bees,which will help the cash crops grow in the future.
D)  Alfalfa is another cash crop that can be harvested and sold for food.
E)  They use up any leftover fertilizer.F) None of the above
G) B) and E)

Question 15

A natural form of fertilizer would be

Accepted Answer

A)  manure.
B)  phosphorous application.
C)  nitrogen.
D)  corn plantings.
E)  genetically modified crop plantings.F) A) and E)
G) None of the above

Question 16

The energy needed to process and distribute food in the US is as much as ________ times the amount that is used to actually farm the crops.

Accepted Answer

A)  0) 5
B)  2
C)  3) 5
D)  5
E)  8F) A) and B)
G) A) and E)

Question 17

Which of the following are forms of chemical deterioration of soil?

Accepted Answer

A)  salinization and acidification
B)  waterlogging and laterization
C)  compaction and nutrient depletion
D)  pollution and waterlogging
E)  water and wind erosionF) B) and D)
G) C) and D)

Question 18

The biggest worry about a genetically modified Atlantic salmon with extra growth hormones is that it will introduce these hormones into our diet.

Accepted Answer

A) True 
 B)False

Exam 7: Food and Agriculture

The energy needed to process and distribute food in the US is as much as ________ times the amount that is used to actually farm the crops.

Correct Answer
verified

Contour plowing and strip farming are methods designed to

Correct Answer
verified

Which of these is not a benefit found with reduced tillage farming?

Correct Answer
verified

More than 70% of all soybeans,corn,and cotton grown in the United States are genetically modified.

Correct Answer
verified

Genetically modified organisms (GMOs)are made by taking bits of DNA from different sources to create desired characteristics in an organism.

Correct Answer
verified

Undernourished parents often raise children who are undernourished because the parents

Correct Answer
verified

Wind erosion is most likely to cause problems in

Correct Answer
verified

High responder crops of the green revolution produce tremendous yields

Correct Answer
verified

How is food security related to environmental factors?

Correct Answer
verified

Which of the following are forms of chemical deterioration of soil?

Correct Answer
verified

The USDA estimates ________ percent of conventionally grown foods are contaminated with pesticide residue.

Correct Answer
verified

Waterlogging results from

Correct Answer
verified

The biggest worry about a genetically modified Atlantic salmon with extra growth hormones is that it will introduce these hormones into our diet.

Correct Answer
verified

A natural form of fertilizer would be

Correct Answer
verified

Soil organisms usually stay ________ the soil.

Correct Answer
verified

All are common modern agricultural methods,except

Correct Answer
verified

Which is a disadvantage of conservation tillage methods?

Correct Answer
verified

Alfalfa and clover are two legumes commonly planted as cover crops after the cash crop is harvested.Besides providing roots that will help keep soil in place,what would make these plants good cover crops?

Correct Answer
verified

Exam 7: Food and Agriculture

The energy needed to process and distribute food in the US is as much as ________ times the amount that is used to actually farm the crops.

Correct AnswerverifiedShow Answer

Contour plowing and strip farming are methods designed to

Correct AnswerverifiedShow Answer

Which of these is not a benefit found with reduced tillage farming?

Correct AnswerverifiedShow Answer

More than 70% of all soybeans,corn,and cotton grown in the United States are genetically modified.

Correct AnswerverifiedShow Answer

Genetically modified organisms (GMOs)are made by taking bits of DNA from different sources to create desired characteristics in an organism.

Correct AnswerverifiedShow Answer

Undernourished parents often raise children who are undernourished because the parents

Correct AnswerverifiedShow Answer

Wind erosion is most likely to cause problems in

Correct AnswerverifiedShow Answer

High responder crops of the green revolution produce tremendous yields

Correct AnswerverifiedShow Answer

How is food security related to environmental factors?

Correct AnswerverifiedShow Answer

Which of the following are forms of chemical deterioration of soil?

Correct AnswerverifiedShow Answer

The USDA estimates ________ percent of conventionally grown foods are contaminated with pesticide residue.

Correct AnswerverifiedShow Answer

Waterlogging results from

Correct AnswerverifiedShow Answer

The biggest worry about a genetically modified Atlantic salmon with extra growth hormones is that it will introduce these hormones into our diet.

Correct AnswerverifiedShow Answer

A natural form of fertilizer would be

Correct AnswerverifiedShow Answer

Soil organisms usually stay ________ the soil.

Correct AnswerverifiedShow Answer

All are common modern agricultural methods,except

Correct AnswerverifiedShow Answer

Which is a disadvantage of conservation tillage methods?

Correct AnswerverifiedShow Answer

Alfalfa and clover are two legumes commonly planted as cover crops after the cash crop is harvested.Besides providing roots that will help keep soil in place,what would make these plants good cover crops?

Correct AnswerverifiedShow Answer

Correct Answer
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