Multiple Choice
Identify the letter of the choice that best
completes the statement or answers the question.
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1.
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What is ecology?
a. | a complex network of living and nonliving organisms | b. | the branch of
science dealing with the complex relationships of nonliving organisms | c. | the branch of
science dealing with the complex relationships among living things and their
environment | d. | the branch of science dealing only with natural
resources |
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2.
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The three components of the food chain are...
a. | earth, wind, and fire | b. | producers, consumers, and
decomposers | c. | soil, plants, and animals | d. | dogs, cats, and
horses |
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3.
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What type of farm activity can increase particulate air pollution?
a. | odor from animal feedlots | b. | dust from fields caused by wind
erosion | c. | pesticide aerosol from crop spraying | d. | methane production from animal waste
piles |
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4.
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What criteria air pollutant is responsible for the dark color of smoke?
a. | ozone | c. | carbon monoxide | b. | particulate matter | d. | lead |
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5.
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What percent of the national total farm income per year is lost due to ozone
pollution?
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6.
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Which of the following are examples of herbivores?
a. | humans, chickens, bears, and hogs | c. | coyotes, dogs, bobcats, and
owls | b. | horses, cattle, deer, and sheep | d. | llamas, cats, dogs, and
wolverines |
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7.
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Renewable resources are...
a. | any material that provides energy | b. | irreplaceable | c. | replaceable | d. | not natural
resources |
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8.
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Of these categories of air pollutants, which causes a symptomatic reaction
within hours or days?
a. | chronic | b. | acute | c. | carcinogenic | d. | mutagenic |
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9.
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The computation to derive growth rate is:
a. | birth rate in year one - birth rate in year two = growth rate | b. | birth rate in one
year divided by five = growth rate | c. | death rate + birth rate growth
rate | d. | birth rate - death rate growth rate |
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10.
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The world population in the last 10 years has
a. | decreased rapidly | c. | increased | b. | not had any changes | d. | decreased
slowly |
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11.
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Which of these agricultural practices has made it possible to meet the world
food demands?
a. | the creation of wetlands | b. | deforestation to make room for
cultivation | c. | use of fertilizers and improved genetics | d. | food production
demand has actually decreased in the last 20 years |
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12.
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Which of these medical practices has had the greatest impact in reducing death
rates?
a. | the practice of bleeding patients to remove contaminated blood | b. | the practice of
routine vaccinations for known diseases | c. | advancements in the area of brain
surgery | d. | the practice of artificial insemination |
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13.
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Which of the following are leading groundwater contaminates?
a. | sewage and wastes | c. | car exhaust and oil spills | b. | nitrates and
pesticides | d. | cattle and hog
wastes |
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14.
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Which of the following is a positive impact of animal production on the
environment?
a. | methane gas production | b. | clearing of forests for more animal production
area | c. | replenishing grassland through grazing and manures | d. | clogging of water
ways |
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15.
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What is no-tilt crop production?
a. | preparing a good seedbed for crops | b. | plowing ground, but not
disking | c. | the planting of seeds in the previous year’s crop residue | d. | disking ground prior
to planting |
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16.
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What is the leading causes of eutrophication?
a. | accumulation of salts in irrigated lands | c. | fertilizer
runoff | b. | wind erosion | d. | use of heavy metals in soils |
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17.
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What is one way reforestation impacts the environment?
a. | increases the rate of soil erosion | c. | increases the rate of wind
erosion | b. | provides wildlife habitats | d. | decreases the property value of land |
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18.
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The most accurate definition of soil is
a. | a substance that farmers use that supports plant growth | b. | a group of minerals
that are very valuable | c. | a substance that is extracted from oil
wells | d. | a mixture of organic matter, mineral components, water, and air that supports plant
growth |
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19.
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An agronomist is primarily concerned with what use of soil?
a. | construction | b. | acting as a filter for the hydrologic
cycle | c. | supporting crop growth | d. | natural beauty |
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20.
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It is important for agricultural production soil to be granular in structure for
what purpose?
a. | It is more attractive crop ground. | b. | It is better for building structures
on. | c. | For root penetration and permeability. | d. | Soil structure is not important for
agricultural production. |
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21.
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If soil is stabilized it is
a. | acted on by geological soil erosion and man-made soil erosion | b. | never moving under
any circumstances | c. | under the influence of construction of a new
highway | d. | acted on only by geological soil erosion |
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22.
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Topsoil losses in the Untied States are 1/8 inch, but the3 restoration rate
is...
a. | 30-50 years per inch | c. | 75-90 years per inch | b. | 50-60 years per inch | d. | 400-500 years per
inch |
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23.
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This type of erosion can be responsible for up to 95% of soil loss due to
erosion.
a. | splash erosion | b. | sheet erosion | c. | gully erosion | d. | wind
erosion |
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24.
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What is the purpose of using impermeable clays in constructing landfills?
a. | Impermeable clays do not settle as much as other clays. | b. | To prevent leaching
of household chemicals into groundwater. | c. | Impermeable clays are more conductive to plant
growth. | d. | Impermeable clays are easier to find that other types of
clays. |
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25.
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Which of the following is not a government agency associated with soil
conservation?
a. | The Federal Bureau of Intelligence | b. | The United States Forestry
Service | c. | The National Resources Conservation Service | d. | The Agricultural
Stabilization and Conservation Service |
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26.
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Which of the following is the best description of Class I land?
a. | Moderately good land that can be cultivated and farmed regularly, but has some
important limitations. | b. | Land that may be in a frequent
floodplain. | c. | Very productive land that can be cultivated with minimal erosion control
measures. | d. | Land that may be severely steep, greater than 30% slope, with several eroded
gullies. |
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27.
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Which of the following is considered a mechanical erosion control?
a. | terracing | b. | strip cropping | c. | cover crops | d. | shelter
belts |
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28.
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Which of the following is considered a vegetative erosion control?
a. | conservation tillage | c. | crop rotation | b. | contour farming | d. | diversion ditches or
berms |
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29.
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Municipal solid waste includes all of the following except:
a. | Commercial Solid Waste | c. | Residential Solid Waste | b. | Hazardous
Waste | d. | Industrial Solid
Waste |
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30.
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Most of the solid waste in the municipal waste stream comes from
________.
a. | paper | b. | plastics | c. | yards | d. | aluminum |
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31.
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Humus can be used as fertilizer and comes from...
a. | decomposing organic waste | c. | the incineration
process | b. | human bodily waste | d. | domestic mushrooms |
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32.
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Two environmentally sound methods of solid waste disposal are...
a. | incineration and sanitary landfills | c. | town dumps and sanitary
landfills | b. | ocean dumping and sanitary landfills | d. | compaction and town
dumps |
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33.
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All of the following types of energy may be obtained from solid waste
except
a. | methane | b. | electricity | c. | leachate | d. | biomass
fuels |
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34.
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Which action will not directly contaminate groundwater?
a. | runoff from yards and gardens | b. | incineration of domestic
waste | c. | roadside dumping of large appliances | d. | pouring used motor oil into a storm
sewer |
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35.
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Which of the following is not an example of point source
pollution?
a. | a downstream fish kill | c. | accidental manure spill | b. | an above ground tank
leak | d. | a lagoon
overflow |
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36.
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The main federal agencies that established agricultural guidelines for water
quality are...
a. | Department of Agriculture and the Environmental Preservation
Agency | b. | Department of Commerce and the Soil Conservation Corps | c. | Environmental
Protection Agency and the Army Corps of Engineers | d. | National Farmers’ Organization and the
Nature Conservancy |
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37.
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What is an effective way of controlling air pollution caused by vehicles?
a. | electrostatic precipitator | c. | catalytic
converter | b. | bag house filter | d. | wet scrubber |
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38.
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What type of farm activity can increase particulate air pollution?
a. | odor from animal feedlots | b. | dust from fields caused by wind
erosion | c. | pesticide aerosol from crop spraying | d. | methane production from animal waste
piles |
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39.
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There are different classifications
of water.
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40.
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The natural process of plants releasing water into the atmosphere is
called
a. | evaporation | b. | transpiration | c. | condensation | d. | respiration |
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41.
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Groundwater possesses its own taste, odor, and color, whish is created by
dissolved .
a. | acids | b. | salts | c. | minerals | d. | bacteria |
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42.
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The most frequent occurrences of acid rain in the United States fall in the
and
parts of the upper Midwest.
a. | northwestern, western | c. | southeastern, eastern | b. | southwestern,
western | d. | northeastern,
eastern |
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43.
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Eighty-five percent of the irrigated land in the United States is located in
states.
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44.
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The largest consumer of water used in agricultural practices is
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a. | a hulking ingredient | c. | stock tanks | b. | irrigation | d. | food processing |
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45.
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What percentage of the human body is made up of water?
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46.
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Which type of water keeps soap from getting sudsy and leaves deposits on pots
and pans?
a. | groundwater | b. | surface water | c. | soft water | d. | hard
water |
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47.
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Which of the following is a land-use problem associated with flooding?
a. | destruction of trees that would have supplied lumber | b. | causing large masses
of snow to cover houses, and bury people alive | c. | using major water shortages for farm,
industrial, and domestic water consumers | d. | causing large sand deposits over highways and
fields |
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48.
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Most of the botulism cases reported in the United States are created by
a. | commercial canned fruits and vegetables | b. | home preserved
fruits and vegetables | c. | commercial canned meats | d. | commercial cooked
food items |
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49.
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The signal word “caution” on a label indicates...
a. | no toxicity | c. | moderate toxicity | b. | low toxicity | d. | high toxicity |
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50.
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The signal word “danger” on a label indicates...
a. | no toxicity | c. | moderate toxicity | b. | low toxicity | d. | high toxicity |
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