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11 Cards in this Set

  • Front
  • Back
Fossil fuels currently supply about ____ percent of all world commercial energy supplies.
86%
Sweden, Denmark, & Switzerland have higher standards of living by most measures than Americans or Canadians...
...even though their energy use is much less than ours
Which of the following statements is true?
1. World coal reserves are smaller than petroleum reserves
2. The fossil fuel most abundant in the United States & Canada is petroleum
3. Confirmed oil supplies in the U.S. can only last ten years at current rates of consumption
4. Usually you get a higher dose of radiation living next to a nuclear plant than a coal-burning plant
3. Confirmed oil supplies in the U.S. can only last ten years at current rates of consumption
Renewable energy includes wind, solar, hydropower & nuclear.
True or False?
True
Fossil Fuels
Organic (carbon-based) compounds derived from decomposed plants, algae, and other organisms buried in rock layers for hundreds of millions of years
Three primary fossil fuels
Crude oil
Coal
Natural gas
How efficient is coal?
Coal is one of the most efficient sources of fossil fuel, but only about 30% is useful. The rest is released as heat and pollution.
What are pollution credits?
An industry is allowed to pollute a certain amount based on past performance.
If they produce less than the stated amount of pollution, they get a credit that can be sold to another company.
How much energy is wasted?
84% of all commercial energy in the US is wasted.
People in the US waste as much energy as 2/3 of the world’s population consumes.
What is energy efficiency?
Percentage of total energy input that does useful work in an energy conservation system
What are life-cycle costs?
The initial cost plus the life-time operating costs of an item or appliance.