Which of the following is not a concern related to the practice of hydraulic fracturing or fracking?
A) Waste injection fluids are held on the surface in open reservoirs.
B) Fracking fluids may contaminate groundwater.
C) Injection of fracking fluids may trigger small earthquakes.
D) The reservoir rock may have low permeability.
Q. 2 - Approximately 91 percent of the coal use in the United States today is used for ________.
A) home heating
B) transportation
C) construction
D) electricity
Q. 3 - Which U.S. state was the nation's leader in coal production as of 2014?
A) Pennsylvania
B) Wyoming
C) Texas
D) West Virginia
Q. 4 - Together, ________, ________, and ________ provide more than 81 percent of the energy consumed in the United States.
A) uranium; hydroelectricity; coal
B) coal; nuclear power; wind energy
C) natural gas; wind power; biofuel
D) oil; coal; natural gas
Q. 5 - Which of the following fossils fuels is the cleanest for the environment in the sense that it is most likely to have the lowest sulfur content and the smallest volume of solid ash residue?
A) Natural gas
B) Anthracite coal
C) Heavy, asphalitic crude oil
D) Lignite
Q. 6 - How does the burning of fossil fuels affect the environment?
A) Greenhouse gases are released that raise global temperatures.
B) Sulfur dioxide is produced, which contributes to acid rain.
C) Particulates are released into the atmosphere, which collect on ice caps and glaciers to absorb more heat.
D) Increased carbon dioxide in the atmosphere leads to ocean acidification.
E) All of the above.
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