evr1001 exam 3
Which one of the following global climate changes is most associated with increased hurricane activity?
Warmer oceans
Which of the following best describes the precautionary principle?
We should reduce greenhouse gas emissions because the collapse of the Greenland Ice Sheet is possible, but has a low likelihood of occurring.
You have solar panels on your home. Which of the following is most likely true? Which of the following would likely increase the use of solar panels the most in the U.S.? Your aunt lives in Florida, which is proving similar to California when it comes to electricity use. Which of the following is true? Which of the following is true in California? Which of the following is most likely to support demand charges for owners of solar panels?
You use more from the grid during nighttime. Increasing the amount paid to customers who contribute to the grid. Peak utility demand has shifted to later in the day. As you use more electricity, your rates increase. Pacific Gas and Electric
What is the most significant anthropogenic greenhouse gas?
carbon dioxide
Currently, the greatest supply of natural gas in the United States is
in gas-rich shale.
In terms of pollutants given off, which of the following is best to use?
natural gas
The large peak in electrical generation from 2000 to 2005 represents the availability of large new amounts of
natural gas and renewable energy resources.
Fossil fuels represent
a large amount of Paleozoic and Mesozoic biomass buried anaerobically millions of years ago.
The general pattern of atmospheric carbon dioxide concentration between 1960 and 2010 reveals
a steady increase from about 310 ppm to the current 400 ppm.
In the United States from the Civil War to World War II, the most important fuel was
coal
Of the following choices, which one lists primary energy sources that are used mainly for generating electricity in the United States?
coal, nuclear power, and natural gas
The major fossil fuels differ in the amount of carbon dioxide they emit into the atmosphere when burned. From worst to least, these are
coal, oil, and natural gas.
What are the three challenges to solar energy?
collection, storage, and conversion
In the United States, what is most often used to make ethanol?
corn
The sharp increase in global carbon emissions since 1950 most closely parallels the
global surface temperatures over this same period.
The sharp decrease in atmospheric 14C in the past decade is directly related to
increased use of in fossil fuels
The greenhouse effect is caused by atmospheric gases trapping what kind of radiation?
infrared
Farmers in North America in the next 50 years will likely experience
less predictability in the weather and more extreme weather events.
Global warming is raising sea levels because of
melting ice and thermal expansion.
What is the term for efforts that decrease greenhouse gas emissions?
mitigation
What is the largest single source of energy used in the United States?
oil
In order to make a rapid transition to renewable energies, countries such as the United States will have to
reduce subsidies to the fossil fuel industry.
Power Tower and Solar Trough systems are both capable of
storing and using heat when there is no sunlight for several hours.
The global temperature pattern observed between 1880 and 2000
suggests that mitigation of carbon dioxide is urgently needed.
Photovoltaic cells produce electricity using the power of
the Sun
Today, more than 50% of the U.S. importation of oil comes from
the Western Hemisphere, especially Canada.
In 2015, a major driving force increasing the development and use of renewable energy is
the global concern about climate change and costs that are now competitive with the costs of fossil fuels.
Oil production is a misnomer for the process used by oil companies because
the oil was produced hundreds of millions of years ago.
Loss of part of the Earth's cryosphere will exert a positive radiative forcing effect on climate change because
the overall albedo of the planet will be decreased.
Potential environmental damage results from the harvesting of fossil fuels and
the transportation, storage, and waste products generated by their use.
Using ice core samples and analyses, researchers have discovered that over the past 800,000 years
there is a strong correlation between global temperatures and greenhouse gases.
Compact florescent and LED bulbs are designed to
use less electricity than incandescent bulbs to produce light
Which of the following best describes the energy supply in the United States in 2015?
Coal and oil are the primary energy supply in the United States.
In the solar panel system presented in the video, which of the following was necessary to generate usable electrical current for a home? Which of the following best describes the energy conversion sequence in the solar panel system described in the video? Which of the following would indicate that a home is using solar power to generate electricity and is NOT using batteries? If a home uses a large supply of solar panels to generate electricity, but has no battery system, surplus electricity that is produced is usually Which of the following is a challenge to using solar-generated electricity in places not connected to a power grid?
DC power had to be converted to AC. Photons carrying energy from the sun chemically react with silicon crystals to generate a flow of electrons. There are solar panels on the roof and power lines going to the home. released into the power grid for others to use, generating a credit to the homeowner the lack of efficient and inexpensive battery technology
How do recessions affect the demand and price of oil?
Demand initially decreases, leading to a price decrease.
Which of the following has the highest albedo?
Snow on top of ice on a pond
Which of the following is true regarding solar power to produce electricity?
The PV-power industry is the fastest-growing energy technology industry in the world due to decrease in costs.
Even though a tremendous amount of the sun's energy strikes the Earth every day, why doesn't the Earth overheat?
The energy is ultimately radiated back to space.
About how much of the energy consumed in the United States comes from nuclear power, hydroelectric power, and renewable sources?
about 13%
Solar space heating units tend to be less expensive than solar water heating units because
air has a lower density and is usually less expensive to move than water.
In the United States, global climate change skeptics and deniers are largely sorted
along political lines.
Methane, nitrous oxide, and halocarbons
are all potent greenhouse gases but at present are less of a threat for climate change than carbon dioxide.
Since the 1980s, the United States has
been steadily consuming more oil and producing less.