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Most commonly used in highly developed countries
Biomass
Which of the following best describes an advantage of burning biomass rather than burning fossill fuels in developing countries?
Biomass production is cheaper than fossil fuels extraction, making it more readily available for use
In the majority of less developed countries , the major source of energy for domestic use is which of the following?
Biomass
Which of the following is s way for the government to encourage efficient energy use?
Requiring higher fuel economy standards for new cars
What was the approximate increase in consumption from 1936 to 1997
20%
A home uses 10 100-watt lightbulbs for 5-hours per day. Approximately how many kilowatt-hours of electrical energy are consumed in 1 year using the lightbulbs?
1825
Which 3 sources supply the majority of commercial energy in the world today?
Coal, Oil, Natural Gas
A soil sample near chernobyl was found .. will remain sample after 90 years?
23.38 kBq/m^2
A sample of radioactive waste has a half-life of 10 years and an activity level of 2 curies. After how many years will the activity level be 0.25 curies?
30 years
An advantage of using natural gas, rather than oil as a fuel is that natural gas is
cleaner because it burns more completely
A cost benefit analysis done to investigate a proposed mine site would likely take which of the following into account?
i. the medical cost of workers
ii. the cost of enviormental restoration of the site when it is shut down
iii. the value of the ore to be extracted from the mine
i,ii,iii
Which of the following is the best example of cogeneration?
A coal-fired power plant captures waste heat and uses it to head adjacent buildings
Which of the following has the largest proven coal reseves?
The USA
Some automobiles in the unites states are fueled by natural gas. What is the primary enviornmental advantage of natural gas relative to gasoline as a transportation fuel?
Natural gas combustion emits fewer pollutants
Which of the following is a characteristic of nonrenerable energy sources that distinguishes them from renewable energy sources?
Nonrenewable energy sources typically take longer time to replenish than renewable energy sources do