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26 Cards in this Set
- Front
- Back
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fossil fuels |
a fuel formed from the decay of ancient forms of life; coal, oil, and natural gas; cheaper than alternative energy sources |
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geothermal energy |
heat from below Earth's surface |
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solar energy |
energy from the sun |
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alternative energy source |
a source of energy other than the burning of fossil fuels |
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hydroelectricity |
electricity generated by running water |
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renewable resources |
materials from the environment that people use that can be replaced relatively quickly |
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nonrenewable resources |
materials from the environment that people use that cannot be replaced |
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nuclear energy |
energy contained in the nucleus of an atom |
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inexhaustible resources |
an energy source that cannot be used up |
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thermal pollution |
the addition of warm water into a stream or lake that is normally cold |
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pollution |
a harmful change to the environment; renewable resources produce less of this than fossil fuels |
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coal |
created from the remains of ancient plants that lived in swamps |
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acid rain |
formed when fossil fuels are burned and combined with water vapor, then falls to Earth as rain; type of pollution |
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smog |
a mixture of smoke and fog, formed when fumes of cars collect in moist, calm air; type of pollution |
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greenhouse gases |
released from burning fossil fuels and causing global temperatures to increase |
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oil spills |
come from tankers or pipelines and can harm living things |
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conservation |
saving, protecting, or using natural resources wisely |
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reduce |
use less heat in winter, more fuel efficient cars |
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biomass |
resource that comes from living, or recently living creatures |
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recycle |
water bottles and other plastics, paper, reduces amount of garbage |
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reuse |
washable cloth napkins, tv and computer parts, water bottles |
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Examples of nonrenewable energy resources |
coal, oil, natural gas, minerals |
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Examples of alternative energy sources |
wind, solar energy, geothermal energy |
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problems associated with oil spills in the ocean |
contaminants sink to deep waters and affect ocean ecosystems, feeding becomes difficult for sea birds and the affected birds cannot fly |
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How can trees be renewable or nonrenewable? |
they are renewable, unless they are cut down more quickly than they are replaced |
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ways people misuse resources and cause harm to the environment |
burning fossil fuels building dams can disrupt aquatic ecosystems cutting down too many trees
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