Test: Chapter 15 (Food And Agriculture)

31 Questions | By Dfashauer | Updated: Mar 21, 2022 | Attempts: 3535

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Test: Chapter 15 (Food And Agriculture) - Quiz

Demonstrate knowledge on food and agriculture topics from chapter 15.

Questions and Answers

1.

Which of the following farm practices have been used by farmers only in recent years?
- A.
  
  Fertilizing crops
- B.
  
  Irrigation
- C.
  
  Pest control
- D.
  
  None of the above
2.

Farmland may become desertified if
- A.
  
  Domestic animals are allowed to overgraze the land
- B.
  
  Too many crops are grown on the land and the land gradually loses its fertility
- C.
  
  As a result of erosion, there is no fertile soil left to grow plants
- D.
  
  All of the above
3.

Land where it is possible to grow crops is called
- A.
  
  Organic land
- B.
  
  Arable land
- C.
  
  Vegetative land
- D.
  
  All of the above
4.

Which of the following actions contributes to soil erosion?
- A.
  
  Using compost as fertilizer
- B.
  
  Allowing land to lie fallow
- C.
  
  Driving farm machinery over fields
- D.
  
  All of these practices contribute to soil erosion
5.

Which of the following agricultural products requires the least amount of energy?
- A.
  
  Beef cattle
- B.
  
  Wheat
- C.
  
  Dairy cows
- D.
  
  Both (b) and (c)
6.

When a farmer uses no-till farming methods,
- A.
  
  Seeds are planted among the roots of the previous crop
- B.
  
  More erosion is likely
- C.
  
  Only organic fertilizers are used
- D.
  
  All of the above
7.

One potential way to deal with the problem of seafood overharvesting is by intensifying ____________ efforts.
- A.
  
  Genetic engineering
- B.
  
  Subsistence farming
- C.
  
  Aquaculture
- D.
  
  Integrated pest management
8.

Which of the following is a good way to reduce salinization?
- A.
  
  Use ocean water instead of groundwater to irrigate crops
- B.
  
  Increase the use of synthetic pesticides
- C.
  
  Using rainwater instead of groundwater on crops
- D.
  
  Adopt no-till farming methods
9.

DDT is harmful to the environment because it
- A.
  
  Does not breakdown quickly into harmless chemicals
- B.
  
  Concentrates in the bodies of animals high in the food chain
- C.
  
  Causes some birds to lay eggs so thin that they break when the birds sit on them
- D.
  
  All of the above
10.

A true statement about nutritional requirements in humans is that
- A.
  
  Vitamins are of limited importance in growth and development
- B.
  
  Humans need to get eight essential amino acids from the proteins they eat
- C.
  
  Carbohydrates are mainly used to make membranes and hormones
- D.
  
  Both (a) and (b)
11.

All of the following factors can cause famines except
- A.
  
  The failure of food production to keep pace with population growth
- B.
  
  Distribution problems caused by potential turmoil
- C.
  
  New, higher-yield crops
- D.
  
  Crop failure brought on by sustained drought
12.

The results of the green revolution were not entirely positive because
- A.
  
  There were too few subsistence farmers
- B.
  
  Use of pesticides and fertilizers increased the risk of population
- C.
  
  Substantial resources were no longer required to grow the new grain varieties
- D.
  
  All of the above
13.

No-till farming helps to conserve soil fertility because
- A.
  
  Remnants of the previous crop are left to slowly decay
- B.
  
  Deep ridges are cut across, not down, the slopes of hills
- C.
  
  The ground is carefully turned to mix soil nutrients
- D.
  
  Only organic fertilizers and natural pesticides are used
14.

Irrigation water usually comes from
- A.
  
  Rainwater collection
- B.
  
  Rivers and groundwater
- C.
  
  Salty sources
- D.
  
  All of the above
15.

Pest populations that damage plants
- A.
  
  Breed more slowly in hot climates
- B.
  
  Become resistant to pesticides via natural selection
- C.
  
  Include only insects and small rodents
- D.
  
  Attack wild plants with greater success than crops
16.

Products obtained from livestock include
- A.
  
  Leather, wool, eggs, meat and manure
- B.
  
  Cotton, linen and nylon
- C.
  
  Wood and plastic
- D.
  
  All of the above
17.

Earth's available arable land is being reduced by
- A.
  
  Fast-growing human populations
- B.
  
  Soil erosion
- C.
  
  Desertification
- D.
  
  all of the above
18.

Erosion is most likely when the soil is
- A.
  
  Bare and exposed to wind and rain
- B.
  
  Plowed along the contour of the land
- C.
  
  Covered with grass
- D.
  
  Planted to forest
19.

Plowing with machines, irrigating with drip systems and _____________ are all modern agricultural methods.
- A.
  
  Using manure
- B.
  
  Applying chemical fertilizers
- C.
  
  Irrigating with ditches
- D.
  
  Both (a) and (b)
20.

Genetic engineering of food crops
- A.
  
  Continues to be debated among scientists
- B.
  
  Is only used with corn
- C.
  
  Must be disclosed on food ingredient labels
- D.
  
  Both (a) and (c)
21.

The amount of a crop produced per hectare (or acre) is called the ____________________.
22.

The health problem caused by not eating enough necessary nutirents is known as ________________.
23.

The name for a widespread food shortage that results in many people not having enough food is called a(n) ________________.
24.

The upper layer of topsoil consisting of rock particles, water, air and organic matter is the ________________.
25.

Land on which crops can be grown is called ________________ land.