Chapter 11 Practice Quiz

Broad-spectrum inorganic toxins:

A) are the “magic bullet” of pest control
B) target a single species of pest
C) are effectively used in integrated pest management
D) are widely toxic to all life
E) none of the above are true

D
Use of predators, parasites, and competitors for pest control defines which of the following?

A) integrated waste management
B) secondary pest outbreaks
C) effective methods for controlling malaria
D) game ranching
E) integrated pest management

E
Plowing (i.e. the regular mixing of the top layer of the soil) is exactly like which natural process?

A) glacial action
B) flooding
C) wind erosion
D) earthquakes
E) plowing is not like any other natural process

E
Of the approximately 500,000 species of plants on Earth, about how many are cultivated on a large scale?
A) 10
B) 50
C) 150
D) 500
E) 5000
C
No-till agriculture is an agricultural technique in which:

A) only natural pesticides and herbicides are used
B) plowing runs perpendicular to the contours of the land, channeling runoff down slope
C) the land is not plowed
D) fall plowing is favored
E) no crop rotation takes place

C
The “Green Revolution” refers to:

A) a recent political shift in Germany and other European countries
B) the shift from hunting and gathering to agriculture
C) post-World War II programs to increase crop yields and resistance to disease
D) the 1993 overthrow of the Brazilian government
E) the shift from resource-based agriculture to demand-based agriculture

C
For the most part, undernourishment affects more than 35% of the population in various ___ countries.

A) Central American
B) African
C) South American
D) Australian
E) North American

B
Soil fertility is the combination of the capacity of a soil to:

A) supply nutrients necessary for plant growth
B) store water but not become too waterlogged
C) have a structure that allow good flow of air
D) all of the above
E) supply nutrients necessary for plant growth and store water but not become too waterlogged

D
With regard to genetically modified field crops, the United States requires that if a food product is more than 0.9% genetically modified it must be labeled as such.

True or False

False
Planting large areas with a single species is referred to as monoculture.

True or False

True
Monoculture is beneficial because there is actually a lower likelihood of crop diseases.

True or False

False
The United States is the world’s largest exporter of rice.

True or False

False
According to your Environmental Science text, approximately one-third of the harvested crop in the US each year is lost to pests.

True or False

False
The overall goal of integrated pest management (IPM) is to completely eliminate a pest using a combination of biological controls, certain chemical pesticides, and some methods of planting crops.

True or False

False
Aquaculture refers to the production of aquatic animals for food.

True or False

True
Liebig’s “Law of the Minimum” says that the limiting factor in agriculture can be overcome by simply applying fertilizers.

True or False

False
Approximately ___% of the world’s land area (excluding Antarctica) is used for agriculture.
38
Geologically, soils are earth materials modified over time by ___ processes into a series of layers.
physical, chemical, and biological
___ is the term given to progressive emaciation caused by a lack of protein and calories.
Marasmus
Describe the difference between rangeland and pasture.
Rangeland provides food for grazing and browsing animals without plowing and planting. Pasture is plowed, planted, and harvested to provide forage for animals.
According to your Environmental Science text, people starve in two ways, they are ___ and ___.
undernourishment and malnourishment
If the United States currently uses approximately 700 million pounds of pesticides every year and there are about 280 million people in the U.S., what is the per capita use of pesticides in the U.S.?
2.5 pounds per person per year
The ___ gene makes seeds from a crop sterile after the first year, meaning that farmers cannot save seed from one harvest to plant the next year.
terminator
Traditional herding practices mainly affect the environment through overgrazing, whereas industrialized production of domestic animals causes problems because of a buildup of ___ which pollutes local streams.
manure