Multiple choice questions (42) I need at least a 94/100

Question 1 of 423 Points

The EPA has had the greatest success in controlling which of the following sources of air pollution?

A. Volcanoes
B. Stationary sources
C. Non stationary sources.
D. All of the above

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Question 2 of 422 Points

Which of the following is the major contributor to the formation of acid rain?

A. ozone
B. methane
C. sulfur dioxide
D. carbon dioxide

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Question 3 of 423 Points

Impact of global warming include all of the following except

A. rising sea level.
B. more extreme weather.
C. decrease of mortality because winter is getting warmer.
D. more human illness.

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Question 4 of 423 Points

At this point in time, experts feel that the most practical way to cope with depletion of the ozone shield is to:

A. produce more ozone at ground level
B. terminate production of CFCs through finding substitutes
C. transport ozone to the stratosphere with rockets
D. erect ultraviolet sunscreens over cities

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Question 5 of 422 Points

The greenhouse effect refers to:

A. warming of the Earth’s atmosphere
B. the removal of air pollutants by passing the air through greenhouses
C. increased skin cancer due to greenhouses
D. the principle on which a new solar heating device is based

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Question 6 of 422 Points

All of the following are considered as indoor air pollutants except:

A. cigarette smoke
B. radon
C. sodium chloride
D. asbestos

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Question 7 of 423 Points

The endangered northern spotted owl

A. has a high reproductive rate.
B. is a symbol of the struggle between conservation biologists and timber company owners.
C. has a high survival rate of juveniles.
D. feeds at the middle trophic levels.

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Question 8 of 423 Points

A major reason that tropical forests are being cleared so quickly is

A. their soils are rich.
B. their climates support almost any agricultural crop planted.
C. settlers are desperate to get land and any income they can.
D. the land is available in unlimited supply.

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Question 9 of 422 Points

Many developing countries in Africa find their wildlife is worth the most money

A. as products for export.
B. as meat for local people
C. as ecotourism subjects
D. when replaced by domestic livestock

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Question 10 of 422 Points

Which of the following is NOT one of the primary air pollutants regulated under the Clean Air Act?

A. nitrogen
B. sulfur dioxide
C. carbon monoxide
D. particulate matter

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Question 11 of 423 Points

What are the ecological implications of global warming?

A. Plants and animals may not be able to move to a suitable habitat quickly enough to survive.
B. In general, plants and animals will probably benefit from warmer temperatures.
C. Since farmland may be lost, the habitats for plants and animals will increase in area.
D. Since biodiversity is usually higher in warmer, milder climates, it will probably be increased

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Question 12 of 422 Points

Underlying causes of extinction and population reduction of wildlife include all of the following except

A. conversion of wild habitat into residential, commercial or other uses
B. fragmentation of wild habitat into smaller units
C. simplification of wild habitat by straightening rivers or removal of dead trees
D. restoration of wild habitat into its original state.

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Question 13 of 422 Points

In 1987, nations met in Montreal, Canada to adopt a protocol to reduce production of:

A. carbon dioxide
B. nitrous oxide
C. chlorofluorocarbons (CFCs)
D. sulfur dioxide

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Question 14 of 422 Points

Radon is an indoor air pollutant that has been linked to

A. skin cancer.
B. lung cancer.
C. liver disease.
D. kidney failure.

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Question 15 of 423 Points

An aerosol mixture of particulates and sulfur compounds forms a grayish colored substance that is called

A. photochemical smog
B. industrial smog
C. urban smog
D. inversion smog

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Question 16 of 422 Points

The main reason for the current high rate of animal extinctions is

A. hunters kill excessively high numbers of animals
B. commercial harvesting of wildlife in Africa.
C. drought conditions caused by the greenhouse effect
D. habitat destruction worldwide

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Question 17 of 422 Points

Which of the following is NOT a major step in controlling air pollution?

A. identification of pollutants
B. finding cures for the diseases caused by air pollutants
C. determination of major sources of pollutants
D. implementing strategies to meet the air pollution standards

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Question 18 of 422 Points

It is well established that exposure to ultraviolet (UV) rays from thinning of the ozone layer will cause skin cancer. Which of the following health problems is also associated with UV exposure?

A. headaches
B. eye cataracts
C. heart disease
D. gastrointestinal disease

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Question 19 of 422 Points

Which step would be most likely to have the greatest effect on improving outdoor air pollution?

A. drastic reduction in automobile use
B. drastic reduction in the use of aerosol cans
C. drastic reduction in radon emissions
D. drastic reduction in cigarette smoking

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Question 20 of 423 Points

The major greenhouse gases are

A. carbon dioxide, water vapor, methane, and chlorofluorocarbons
B. carbon dioxide, oxygen, nitrogen, and water vapor
C. oxygen, nitrogen, argon, and neon
D. chlorine, fluorine, neon, and argon

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Question 21 of 423 Points

The major source(s) of chlorofluorocarbons (CFCs) in the atmosphere was/were

A. refrigerants, solvents, and spray propellants
B. microbial fermentation of organic mater in coal mines, oil wells, and livestock
C. emissions from automobile exhaust and chemical fertilizers
D. combustion of fossil fuels

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Question 22 of 422 Points

A species whose population is reduced to near critical level but is not on the brink of demise is said to be:

A. critical
B. endangered
C. threatened
D. extinct

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Question 23 of 422 Points

Increased greenhouse gases originate from

A. burning fossil fuels.
B. wind turbines.
C. use of solar cells.
D. all of these answers.

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Question 24 of 422 Points

Most of the endangered species can be saved from extinction:

A. by preserving and protecting the ecosystems in which they live
B. by breeding them in captivity
C. by hybridizing them with other more vigorous species
D. by giving them more vigor through genetic engineering

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Question 25 of 422 Points

The best way to address outdoor air pollution is to

A. build high smoke stacks.
B. add pollution control devices such as scrubbers.
C. use less polluting energy sources such as wind or solar.
D. use high sulfur content coal.

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Question 26 of 422 Points

Which of the following is a consequence of clearing forests for agricultural purposes?

A. crop productivity is greatly increased because of the rich soil
B. biodiversity is increased
C. soil is erosion is increased
D. water runoff is decreased

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Question 27 of 423 Points

The Endangered Species Act

A. will save all endangered and threatened species
B. is strongly supported by both Democrats & Republicans in Congress
C. enabled quick identification and implementation of protection plans for all endangered species
D. is criticized by both environmentalists and real estate developers

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Question 28 of 422 Points

The majority of international scientists have concluded that

A. global climate change is a hoax.
B. the earth is likely to experience an Ice Age in the next century.
C. the slight rise in temperature observed over the last century was caused by changes in solar cycles.
D. the slight rise in temperature observed over the last century was probably influenced by human causes.

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Question 29 of 423 Points

An increase in ultraviolet radiation is likely to cause all of the following except

A. increased incidence of skin cancers and eye cataracts.
B. decreased yields of food crops.
C. decreased phytoplankton productivity.
D. an increase in biodiversity.

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Question 30 of 423 Points

Which of the following statements is true?

A. Thermal inversion occurs only when the surface of the ground is relatively flat.
B. Thermal inversion is created when weather and geographic conditions prevent smog from rising and dissipating in the upper atmosphere
C. Normally, cool air near Earth’s surface expands and rises, carrying pollutants higher into the troposphere.
D. All of the above are true.

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Question 31 of 423 Points

Most commercial loggers prefer “clear-cut” harvesting because it

A. is the most environmentally sustainable type of harvest.
B. is the most efficient way to get valuable small timber without disturbing the larger early successional trees.
C. is the most efficient, cheapest harvest method using large, fast machinery instead of costly labor.
D. is the most effective way to refresh soil with sun and rain.