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Online pop/res exam environmental science

Terms in this set (40)

Threatened and endangered species receive special protection from human activities such as hunting and habitat destruction from agriculture and logging. Because these activities may often continue despite the species low numbers, the human activities therefore
are density independent
Some beetles escape from a ship and fly to a small island covered with grass but with no trees or beetle predators. As the beetles feed, they destroy all the grasses. But with abundant food, the beetle population soars, doubling in size every month. After about a year, the population crashes as thousands of beetles have destroyed almost all of the plants and there is little left to feed the large population. This scenario best illustrates
exponential growth followed by a population crash
Use the following information to answer the question(s) below.

A squirrel population in an oak forest in Indiana is limited by hawk predators, the amount of acorns produced annually, nesting sites in the trees, and cold winter temperatures.

Which of the following is an abiotic factor limiting this squirrel population?
the stress of cold winter temperatures
The population of game fish in a lake is under heavy fishing pressure. If too many fish are caught, the population will crash and future years of fishing will suffer. The game fish can exciting logistic growth under certain circumstances. Assuming logistic growth, it would be best to manage this game fish population by permitting the harvesting of just enough fish to keep the game fish population
at 50% its carrying capacity
Along the shoreline of a pond, Canada geese, American toads, and grass frogs search for food while bluegill and bass prey on small fish in the shallow water. These species, living and feeding in this particular location, represent a _______.
community
The feeding of a flea on a dog's blood and your case of athlete's foot illustrate examples of
parasitism
Which of the following represents a type of top-down regulation for wildflowers living in a forest
herbivores in the region
Which of the following illustrates intraspecific competition
Male red-winged blackbirds defending limited nesting sites from other males
Kudzu vine, chestnut blight, fire ants, and Japanese beetles are all examples of
invasive species
Rabbits in Australia
are an example of the high biotic potential of some introduced species coupled with a lack of natural predators
amount of land and ocean area needed to provide the resources for one person and absorb his/her wastes defines the
environmental footprint
Which of the following was not a consequence of the Neolithic Revolution
Increased mortality
Small subsistence farms in developing nations
had a sustainable use of the environment when populations were smaller than now
The 2008 and 2012 projections for U.S. population growth are significantly greater than projections made in 1989 because the more recent projections include
higher fertility rates and higher level of immigration
In South America and other LDCs with high total fertility rates, farmers engage in slash and burn of the rainforest to
increase areas for farming
The increased reliance upon raw materials from many parts of the world resulted from which revolution
The Industrial Revolution
Women in two developed countries have similar total fertility rates of 3.5. However, women in country A typically have their children about 2 years earlier than women in country B. How will the populations of the two countries compare?
The population of country A will increase faster than country B
The Neolithic Revolution is most clearly seen in human culture today in our use of
modern agriculture to raise food crops
Indonesia represents a nation in which
women are now having smaller families because of economic and social service constraints
A population that has been at or below replacement-level fertility for decades will
stop growing or decrease in size
Which two fuels are currently used at about equal levels in the United States?
Coal and natural gas
an oil shortage in 1973 was mainly the result of
increased reliance on foreign oil and global politics
The year 2008 revealed one of the economic risks of continued reliance on oil, when
gasoline prices reached new highs
The United States Clean Coal Power initiative has developed technology to
produce synthetic gas from coal and remove or concentrate pollutants generated in the process
limits on mountaintop removal mining were removed by the British administration in the late 1990s when
the mountain top debris was reclassified from waste to fill, allowing it to be dumped into valleys.
Which of the following statements about Deepwater Horizon event of 2010 is true?
Much of the spill was broken by bacteria or evaporated from the water's surface
Recent U.S. energy policies, such as the 2007 Energy Independence and Security Act and the 2009 Recovery Act generally
encourage efficiency in lights, appliances, and buildings
On a winter day, most automobiles keep the passengers warm by using heat generated by the engine. This use of the heat by-product from a gas engine is an example of
CHP technology
Wood pellets are produced from the waste sawdust of lumber and paper mills. Home-heating stoves burning these pellets can heat homes directly, instead of relying on other energy sources. Heating your home with wood pellets is
Sustainable, less polluting, and more efficient than heating a home using electricity from a coal-fired power plant
Most oil is recovered from an oil field
only after using secondary or enhanced procedures that first generate pressure
Currently, the main benefit of using corn-based ethanol in the United States is
reduced reliance on non-renewable petroleum
In 2015, Germany has had major investments in renewable energy, and Germany has set a goal to eventually supply 80% of the nation's power through renewable energy. Which of these is the best conclusion to draw about Germany?
Germany has transformed its energy policies and economic infrastructure to accommodate development of renewable energy
Current ethanol production as a fuel does not significantly reduce greenhouse gas emissions because
of the amount of fossil fuels required to produce the corn used in the process
Use the following information to answer the question(s) below.

A home located next to a 5-acre pond (30 feet deep in the center) uses the steady temperature of the deep pond water for heat exchange. A closed system of water is piped from the home underground to deep regions of the pond and then back to the home. Inside the home, a heat exchange system extracts heat in the winter and removes heat from the home in the summer. This home relies completely on electricity, generated by burning coal at a distant power plant.

This home system illustrates the use of
geothermal energy
The U.N. and many international agencies feel a sense of urgency to make the transition to renewable energies soon, because
projected levels of carbon dioxide levels may reach 1000 ppm by 2100 with catastrophic effects of global sea levels and climate
Although hydroelectric dams generate electricity without producing greenhouse gases, they
eliminate farmland and wildlife habitats and often villages in the regions that are flooded
The future global energy demands may be met by developing sustainable energy resources and, most easily, by
improving energy conservation and efficiency of current technology
In the winter in Wisconsin, a person going to work at 8 AM parks her car so that it is in bright sunlight in the afternoon, When she gets in her car at about 5 Pm, the inside is warm because of
passive solar heating
Buses and cars using fuel cells are
already in use and ready for commercial production.
enhanced geothermal systems
generate electricity using the heat of the earth to make steam.
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