Env. Science- Quarter 4
Which of the following describes the accident at Chernobyl?
A nuclear reactor exploded and released radiation into the air.
The energy from the sun contributes to
All of the options
What would increase energy efficiency in the United States?
All of the options
Which of the following is/are negative consequences of gold mining in poor countries?
All of the options
This term refers to two or more metals that are combined.
Alloy
Which country consumes the most energy per person?
Canada
Which of the following does NOT correctly match the energy source with its advantages?
Coal can be easily obtained with minimal environmental damage.
A gasoline alternative that can be made from agricultural products is called ______________.
Ethanol
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 element might be the fuel of the future?
Hydrogen
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.
Which of the following is an advantage of nuclear energy?
It does not produce air pollution.
Which one of the following states has the most natural coal deposits?
Montana
This energy source burns relatively cleanly.
Natural gas
What is the main reason why fewer nuclear power plants are being built today, compared to 40 years ago?
Nuclear power plants have become too expensive to generate electricity at a profit
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
Which of the following would NOT be considered an aggregate?
Sea glass
Which of the following is a disadvantage of photovoltaic cells?
They need long periods of sunshine to produce a small electric current.
In coal mining, one of the most serious consequences is
Underground fires
A lifestyle change that can help conserve energy is
Using less of any resource
Double hulling is
a construction method used to prevent oil spills.
During the process of nuclear fission,
a neutron splits a uranium-235 atom, forming new elements and releasing several neutrons plus energy.
A heat exchanger is used in
active solar heating
Sand, gravel, and crushed rock are all examples of __________.
aggregates
Minerals are arranged in a regular, repeating geometric pattern of
atoms
Stream placers often occur
bends in rivers
Motor vehicles using gasohol or ethanol made from corn are examples of
biomass fuel
Acid will react with rocks that contain
calcite
The function of an electric generator is to
convert mechanical energy into electrical energy.
In order for minerals to crystallize at the bottom of a body of water, they must first
dissolve
What are the five major factors influencing the value of a particular fuel?
energy content, cost, availability, safety, and byproducts
The percentage of energy put into a system that does useful work is called
energy efficiency
Which of the following is NOT one of the ways that ore minerals may form?
flooding of empty stream beds and rivers
Solar energy, or energy from the sun, is contained in
fossil fuels
Gangue minerals
have no commercial value
A solar water heater uses
heat exchanger
The most energy-efficient vehicles available today are
hybrid cars
Flooding of habitats, disruption of ecosystems downstream, and reduced productivity of farmland are disadvantages of
hydroelectric energy.
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
Nuclear fusion
involves the combining of atomic nuclei.
One disadvantage of wind energy is that
it must be transported from its source to where it is needed.
The mineral galena is mainly made of
lead
A fuel's suitability is dependent on all the following factors except
magnetism
Inside of a nuclear power plant, the controlled fission reaction occurs inside the
nuclear reactor
A geothermal power plant gets energy by
pumping heated water or steam from geothermal reserves
Wind, moving water, sunlight, and heat from Earth's interior are sources of
renewable energy
Reclamation is the process of
returning land to its original or better condition after mining
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
Coal is formed when
swamplands are buried by sediment. Then the added weight creates heat and pressure, which converts the plants to coal.
Which of the following factors does not help predict future oil production?
the number of oil refineries operating in the past
In a nuclear power plant,
three pipe circuits pump water through the reactor, turbine, and cooling tower.
In developing countries, you are most likely to find biomass used
to generate electricity
Which of the following fuels does NOT release carbon dioxide when it is used to produce electrical energy?
uranium-235
Which of the following is an advantage of using fossil fuels for energy?
versatility in its uses
Which of the following is a major source of biomass fuel in developing countries?
wood