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Chapter 5 Lesson 1 Natural Resources
Terms in this set (38)
a process in which mined land must be recovered with soil and replanted with vegetation
a resource that can be replaced by natural processes in a relatively short amount of time
a resource that is used faster than it can be replaced by natural processes
energy released from atomic reactions
coal, oil and natural gas and formed from remains of prehistoric organisms
What changed prehistoric organisms into fossil fuels?
extreme temperature and pressure
Formed plants from over 300 millions years ago. Bacteria, extreme temperature and pressure acted on the plant remains and peat is formed transported by trains
a brownish material formed from prehistoric plant remains and is the basis for coal
the hardest type of coal contains the most carbon and burns the best
oil and natural gas
Formed from plankton. Transported by pipelines of large ships called tankers
microscopic marine organisms
How does plankton become oil and natural gas?
Plankton die and are on the ocean floor. layers of ocean sediment cover the dead plankton and than bacteria decompose it. pressure and extreme temperatures make it into oil and natural gas.
Examples of Renewable Resources
solar energy, wind, water geothermal and biomass
Advantages of fossil fuels
Fossil fuels turn electric energy into chemical energy. Store chemical energy which can be burned for electrical energy. They store chemical energy and when burned electric energy
Disadvantages of fossil fuels
limited supply, habit disruption and pollution. Current rates of consumption, knows reserves of oil will last only another 50 years disturbs environments. (Birds and other organisms that live in forests and pollution
rock layers through which nothing can pass
Examples of Non Renewable Resources
Fossil fuels such as coal, oil and uranium
Pollution from fossil fuels
Releases chemicals into the atmosphere. Buring fossil fuels releases camicals into the atmosphere
Nuclear fission process of splitting atoms to make electricity atom splits and release two to three neutrons and thermal energy. This energy heats water and changes it to steam
advantages of nuclear energy
A small amount of uranium produces a large amount of energy. A well-run nuclear power plant does not pollute the air, the soil, or the water.
disadvantages of nuclear energy
Uses a nonrenewable resources uranium for fuel. If not controlled, a nuclear reactor can release harmful radioactive substances into the environment. waste materials from nuclear power plants are highly radioactive and dangerous to living organisms. These must be stored safely.
% of u.s energy provided by fossil fuels + nuclear energy
93% energy provided by fossil fuels. People in the US use more than 22 percent of the world's total energy.
How do we manage natural resources
be responsible do not be wasteful
Why do we need environmental laws?
help ensure that mining and drilling take place in an environmentally safe manner.
a rule dealing with procedures, such as safety
energy used by appliances and other electronic equipment that use electricity 24 hours a day consumes 5% of energy used used each year
wood, and other organic matter. burning biomass releases carbon and is a "renewable" energy source because plants can be regrown. Biomass most often refers to plants or plant based materials that are not used for food or feed
It is an energy from the sun
Solar power plants
They transform energy is sunlight, which then turns connected to generators
It is used to turn windmills. Today, wind turbines can produce electricity on a large scale
It produces electricity using different methods, such as hydroelectric power and tidal power
Electricity produced by flowing water
It's when water flows across turbines as the tide comes in during high tides and as it goes out during low tides. The flowing water turns turbines connected to generators that produce electricity
Thermal energy from Earth's interior It can be used to heat homes and generate electricity in power plants. Wells to reach hot dry rocks or bodies of magma
it is energy produced by burning organic matter, such as wood, food scraps, and alchol.
Biomass as fuel
Biomass also can be converted into fuels for vehicls.
It is made from vegetable oil and fats. It emits few pollutants and is the fastest growing renewable fuel in the United States
Advantages of Renewable Resorcus
Can be replaced, produce less polution
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