apesWhich of the following best describes the conditions under which peat is formed?
Which of the following explains why some energy sources are renewable?
Renewable energy sources can be replenished naturally, at or near the rate of consumption.
integrated pest management
teaches farmers to use less pesticides
Natural gas is often priced in units of dollars per therm. One therm equals 100,000100,000 BTUsBTUs. A certain family uses 600600 therms of energy to heat its home annually using a natural gas furnace that is 8080 percent efficient. The family is considering replacing its current furnace with one that is 9696 percent efficient. Assuming the cost of a therm is $0.30$0.30, which of the following would be the family's annual savings in the cost of home heating?
$28.80
A family of four lives in a three-bedroom house and uses an average of 900kWh900kWh of electricity per month. The family cools their house for three months during the summer with two window-unit air conditioners that each use 350kWh350kWh of electricity per month. Which of the following is the percentage of the family's total annual electricity that is used to run the two air conditioners for the three summer months?
19.4%
An individual has been driving a passenger vehicle to work, averaging 6060 miles a week in a car that averages 2222 miles per gallon. The individual plans to purchase a hybrid vehicle that averages 5050 miles per gallon. If the individual drives to work 5050 weeks a year, how much gas will they save if they switch to a hybrid vehicle for their commute?
76 gallons
Purity is a major factor in determining the type of coal used for energy. Which of the following types of coal are correctly paired with a description of its purity and common use?
Anthracite is considered the highest grade coal because it is almost pure carbon, and it is often used for domestic heating.
Which of the following is a direct economic advantage associated with aquaculture?
Aquaculture produces large amounts of seafood for human purchase and consumption year-round.
Which of the following best describes an advantage of burning biomass rather than burning fossil fuels in developing countries?
Biomass production is cheaper than fossil fuel extraction, making it more readily available for use.
Which of the following describes an environmental problem that can result from the combustion of fossil fuels to generate electricity?
Carbon dioxide is a product of the combustion fossil fuels, and it can lead to global climate change when released into the atmosphere.
In an apartment building, exhaust from a gas-powered electrical generator is captured to produce hot water to heat a swimming pool. Which of the following is illustrated by this process?
Cogeneration
CAFO
Concentrated Animal Feeding Operation
Which of the following is an unintended environmental consequence of aquaculture?
Contamination of surrounding water by organic waste
Which of the following best describes an environmental problem associated with hydrologic fracturing, or fracking?
Fracking fluids can escape from the drill hole and contaminate surface water and groundwater.
Throughout the world, especially the less-developed countries, burning wood or other biomass for heating or cooking in homes is common. One negative environmental impact of this practice is the production of particulates indoors, which can be a health hazard to humans.
Installing effective ventilation systems in dwellings
Which of the following is a characteristic of nonrenewable energy sources that distinguishes them from renewable energy sources?
Nonrenewable energy sources typically take a longer time to replenish than renewable energy sources do.
The tropical rain forests are known to have a large variety of animals. One example is the orchid mantis that is highly camouflaged when standing on a certain species of orchid found in tropical environments. Another species, the tropical cockroach, can live anywhere in the rain forest where it can find water and a food source. Which of the following statements best describes why it is predicted that the orchid mantis will be more affected by global climate change than the tropical cockroach will be?
Orchid mantises tend to be advantaged in habitats that remain constant; the rain forest habitat is likely to shift because of global climate change.
OPEC
Organization of Petroleum Exporting Countries
Which of the following best describes the conditions under which peat is formed?
Partially decayed vegetation is placed under high-pressure, anaerobic, acidic conditions.
Which of the following best describes legislation that could be used to address problems with overfishing?
The Convention on International Trade in Endangered Species of Wild Fauna and Flora ( CITESCITES ) uses trade rules to protect commercially valuable species.
Which of the following statements correctly explains the role of fossil fuels in the production of energy?
The combustion of fossil fuels heats water to produce steam, which then turns a turbine.
Which of the following is the best example of an economic approach to reduce overfishing for a fish species with a declining population?
The federal government sets a catch limit (per person or per boat) for the species and imposes a tax on any extra fish that are caught.
Although nuclear energy is considered a cleaner energy source than fossil fuels, some scientists argue this does not support the claim that nuclear energy is renewable. Which of the following claims best supports the argument that nuclear energy is a nonrenewable energy source?
The uranium deposits on Earth are finite.
Which of the following is a drawback to using biofuels, such as ethanol, as a fuel source?
There is high energy investment in producing and processing the crops needed for ethanol production.
One way that consumers can help prevent a decrease in the number of fish species that are experiencing population declines is to
eat fish that are caught using sustainable harvesting methods, therefore ensuring fish populations remain stable and reducing the amount bycatch harvested
The farming of fish such as salmon at aquaculture facilities poses a threat to marine ecosystems because
the farmed fish can escape and outcompete wild fish for food and territory