PLEASE PLEASE HELP ILL MARK BRAINY The following outlines a series of events that led to the spread of a hemorrhagic fever in Argentina. Which step provides an example of a cross-species transfer? * A herbicide was sprayed on crops.
New grasses that replaced the previous species of grasses attracted a large rodent population.
Rodents carrying hemorrhagic fevers infected farm workers.
The herbicide killed native grasses
Successful governmental programs to protect the environment usually meet all of the following criteria except that *
regulations are easy to enforce.
economic incentives are provided.
environmental damage is controlled.
jail time is required of offenders.
All of the following are natural sources of pollution except *
burning fuels.
dust.
radon.
volcanoes.
Individuals are more likely to influence environmental policy at the level than at any other level. *
local
state
national
lobbying
Selective cutting involves cutting *
all of the trees in a forest and then reseeding.
only one species of tree in a forest.
only the mature trees in a forest.
only the young trees in a forest.
Which of the following terms and definitions are incorrectly matched? *
toxicology: the study of the harmful effects of substances on organisms
epidemiology: the study of the spread of diseases.
threshold dose: the level at which a substance stops causing health problems
toxic: poisonous
Which of these would not represent a government incentive? *
a tax on actions that have a social cost
a reward for actions that benefit society
the elimination of the “energy star program”
All of the above
What makes the environment a crucial factor in the spread of cholera and dysentery? *
air can carry the pathogens.
water provides a habitat in which the pathogens breed.
the pathogens reproduce in soil.
the disease is transmitted by mosquitoes.
Which of the following international treaties was considered flawed by representatives of the United States because of its inattention to developing countries? *
the Montreal Protocol
the Kyoto Protocol
Agenda 21
MARPOL
Why do people lobby? *
to influence governmental policies
to negotiate treaties
to avoid voting
none of the above
Which of the following is an emerging virus? *
Ebola
measles
diphtheria
schistosomiasis
Emerging viruses are *
cross-species transfers.
spread through open wounds or the mucous membranes.
usually controlled by vaccines.
viruses that were previously unknown.
Which of these planned projects would not need to file an EIS with the federal government? *
building a new airport
building a new garage on your property
building a new highway
building a new dam
Pathogens can be spread by *
breathing contaminated air.
drinking contaminated water.
secondary hosts.
All of the above
Which of the following best explains the slogan "Think globally, act locally"? *
Most environmental issues are global issues.
Broad thinking combined with individual responsibility helps the environment.
The most important environmental actions are global actions.
Local actions have global effects.
What is the purpose of the Clean Air Act and the Clean Water Act? *
to create better methods of waste disposal
to establish the Environmental Protection Agency
to set standards for acceptable levels of pollutants in air and water
to raise public awareness about environmental problems
Which of the following is not an example of marginal land? *
a flood plain
a rocky coastline
a mountainside surrounding a city
cropland
Which of the following types of land is considered rural land? *
cropland
parks and preserves
forest land
All of the above
Which of the following statements describes an advantage of clear-cutting? *
Clear-cutting is the most inexpensive way for companies to harvest trees.
Clear-cutting enables the ecosystem to rapidly return to normal.
Clear-cutting aerates the soil and allows soil to regenerate.
Clear-cutting allows light to reach the heavily shaded plants of the forest floor.