Title: Unit 14 Quiz
Course: BIS 105 Environmental Biology > Section: BIS 105 Environmental Biology

Q: Ultimately, all biofuels are ________, because they are the result of ________.
- solar; photosynthesis
- nefficient; decomposition by microorganisms
- polymers; biological metabolic processes
- geological; sedimentation
- synthetic; chemical manipulation of hydrocarbons
A: solar; photosynthesis

Q: The use of biomass energy is illustrated by burning
- natural gas for heat.
- oil in a kerosene lantern.
- coal to produce electricity.
- logs in a fireplace to heat a cabin.
- electrolysis of water to produce hydrogen.
A: logs in a fireplace to heat a cabin.

Q: The most cleanly burning fossil fuel available is
- coal, usually found in deposits deep within the Earth.
- natural gas, usually found in deposits associated with oil.
- kerosene, found in deposits associated with oil wells.
- diesel, isolated from crude oil.
- nuclear energy, produced from rocks and minerals within the Earth.
A: natural gas, usually found in deposits associated with oil.

Q: Compared to the generation of electricity using coal, nuclear power
- generates no sulfur dioxide but more carbon dioxide emissions.
- generates no sulfur dioxide or carbon dioxide emissions.
- contributes more to global climate change.
- will run out of fuel in about 30 years.
- exposes people to more radioactive elements.
A: generates no sulfur dioxide or carbon dioxide emissions.

Q: For the United States, the primary fuel that we use for our energy is ________.
- nuclear
- wood
- oil
- coal
- natural gas
A: coal

Q: Which of the following would most reduce current US reliance on foreign imports of oil?
- replacing any dishwasher or refrigerator more than 10 years old with new energy efficient models
- switching to energy efficient light bulbs
- raising the MPG requirements for all vehicles
- turning computers and lights off when not in use
- lowering your thermostat 3 degrees
A: raising the MPG requirements for all vehicles

Q: Fossil fuels are considered non-renewable sources of energy because
- people are cutting down too many forests to allow trees to turn into coal.
- their formation is so slow.
- they release carbon dioxide when they are burned.
- carbon dioxide levels in the atmosphere are too low to allow fossil fuels to form.
- there will never be any more produced in the future.
A: their formation is so slow.

Q: The form of energy delivered to an electrical generating turbine in a geothermal facility is in the form of ________.
- heated hydrogen gas
- molten magma
- warm soils and crushed rock
- radioactive isotopes
- hot water or steam
A: hot water or steam

Q: Hydrogen in fuel cells powers automobiles by
- generating electricity.
- creating rapidly combustible hydrogen compounds.
- combining with equal parts of gasoline to create a fuel with extra octane.
- generating changes in gas pressures that move pistons in car engines.
- the change in pressure causing pistons to move.
A: generating electricity.

Q: Discuss the pros and cons of hydropower.

Q: Describe three negative consequences of mountain top mining to harvest coal.

Q: Nuclear energy in power plants is created via ________.
- extraction of energy from the nucleus of cells
- fusion of electrons
- ionic transformation of atoms
- bombarding radioactive elements with electrons
- fissioning uranium atoms by bombarding them with neutrons
A: fissioning uranium atoms by bombarding them with neutrons

Q: U.S. oil production ________.
- is now high enough for us to export nearly 50%
- is sufficient to meet national needs thanks to major conservation efforts
- falls far short of U.S. oil consumption
- has to fit the quotas imposed by OPEC
- will peak out in 2100, requiring for the first time imports to meet growing demand
A: falls far short of U.S. oil consumption

Q: Large-scale commercial extraction of oil from oil shale and oil sand
- produces an oil that cannot be used to produce gasoline.
- are relatively easy, low impact methods that remain to be used.
- are impractical sources of oil that will not ever be used widely.
- is only cost-effective at high oil prices.
A: is only cost-effective at high oil prices.

Q: A power tower concentrates solar energy by
- heating water in pipes that run along rows of curved mirrors.
- using a large field of mirrors to direct sunlight to a specific location.
- collecting light in a series of fiber optic cables directed to underground steam rooms.
- using one very large glass lens to focus sunlight.
A: using a large field of mirrors to direct sunlight to a specific location.

Q: For the United States, the primary fuel that we use for our energy is ________.
- petroleum
- nuclear
- natural gas
- coal
- hydroelectric
A: petroleum

Q: Compared to other nations, the U.S. has among the lowest capacity to generate solar power.
- True
- False
A: False