ENVIO SCI Q4 Testing
Each U.S. resident uses the ecosystem resources approximately equal to what area of land?
12 hectares
Which of the following is/are negative consequences of gold mining in poor countries?
All of the options
UV radiation causes which of the following risks to living things?
DNA damage
Examine the following sentence: "Fluorescent light bulbs are better than incandescent light bulbs." This sentence MOST LIKELY means
Fluorescent light bulbs are more energy efficient.
Which of the following is NOT a common class of rock?
Hydraulic
Which of the following statements about hydrogen gas as a fuel source is correct?
Hydrogen gas can be burned as a fuel or used to produce electricity chemically.
One benefit of preserving farmland is
Increased crop production.
This mining method is used for large ore deposits near the surface that are mined downward, layer by layer.
Open-pit mining
Which of the following is NOT a method of subsurface mining?
Open-pit mining
The National Farmland Protection Program was designed to
Protect farmland from being developed.
Which of the following is NOT an environmental benefit of open spaces?
Reducing traffic flow
Which of the following is true of parks and preserves?
They provide recreation for people.
In coal mining, one of the most serious consequences is
Underground fires
When a city is growing too rapidly and cannot provide services for all citizens, this is called
Urban crisis.
A lifestyle change that can help conserve energy is
Using less of any resource.
Heat islands can affect local
Weather patterns.
A heat exchanger is used in
active solar heating
Sand, gravel, and crushed rock are all examples of __________.
aggregates
What can be done to sustain the productivity of rangeland?
all of these are correct
The energy from the sun contributes to
all the options
What would increase energy efficiency in the United States?
all the options
This term refers to two or more metals that are combined.
alloy
Stream placers often occur
at bends in rivers.
Weather is defined as a region's
atmospheric conditions on a given day.
Minerals are arranged in a regular, repeating geometric pattern of
atoms
The ozone layer protects living organisms on Earth by
blocking ultraviolet (UV) radiation.
Acid will react with rocks that contain
calcite
This is a greenhouse gas that is released into the atmosphere when fossil fuels are burned.
carbon dioxide
Ozone holes appear in polar regions during springtime when ozone-depleting
chlorine atoms are released from polar stratospheric clouds.
When forests are not replanted after trees are cut, natural resources
decrease
In order for minerals to crystallize at the bottom of a body of water, they must first
dissolve
The percentage of energy put into a system that does useful work is called
energy effiency
Which of the following is NOT one of the ways that ore minerals may form?
flooding of empty stream beds and rivers
Urban sprawl involves people moving from cities to land that was previously used for
food production and open space.
Which of the following is an example of land used as a protected area to preserve the scenery and ecosystems?
grand canyon
Gangue minerals
have no commercial value
The most energy-efficient vehicles available today are
hybrid cars
Which element might be the fuel of the future?
hydrogen
Which of the following is considered a source of alternative energy?
hydrogen fuel
In countries such as Ghana, most of the gold is found
in underground mines
Where do most Americans live?
in urban areas
Which of the following would NOT be a consequence of an increase in global temperature?
increased polar mass
_____________ is built to provide public services in urban areas.
infrastructure
The mineral galena is mainly made of
lead
Which of the following has NOT resulted from urban sprawl?
overgrazing
Which of the following molecules can be decomposed by chlorine atoms?
ozone
CFCs are still a threat to atmospheric ozone because they
persist and continue to break down ozone for decades.
Eliminating invasive plants and replacing them with native plants is one aspect of
range improvment
Reclamation is the process of
returning land to its original, or better, condition after mining operations have been
An area with a relatively sparse human population would be called ___________.
rural
Which of the following would NOT be considered an aggregate?
sea glass
Crushed ore is melted at high temperatures to separate impurities from molten metal during
smelting
From whom must mining companies obtain permits before mining a site?
state and federal agencies
The process by which land sinks with little or no horizontal movement is known as
subsidence.
Elevation is a factor in climate because under most conditions,
temperature falls as elevation increases.
Seasonal changes in daylight hours and climactic conditions are caused by
the 23.5 degree tilt of Earth's axis.
Given that most people live in urban areas, why should rural areas be preserved
they provide ecological services.
In cities, traffic jams, substandard housing, and pollution can be the result of
urban crisis
Which environmental problem is NOT caused by deforestation?
urban sprawl
Which type of area listed below is protected from exploitation?
wildrness