enery resources Flashcards
What are the 3 energy types
Fossil fuels
- Nuclear energy
- Alternative energy
3Forms of fossil fuels
Coal oil
Natural gas
Define fossil fuels
Hydrocarbons created from the natural decay of organic material
In the usa fossil fuels acct for what % of energy consumption
85%
List alternative (renewable)energy sources
Solar
- Wind geothermal
- biomass
- Hydroelectric
Coal comes from
Algal remains (marine)
The most abundant gas
Methane (ch4)
Natural gas is a by product of what?
Thermal maturation of oil and coal
Advantages of fossil fuels
- Low cost *capacity to generate enormous amounts of energy
- Global availability
- Existing infastructure
Define resources
Includes all deposites on earth. (Known & undiscovered, economical & aren’t economical yet
What are reserves?
Known quantity of resources that can be extracted economically by todays standards
What is hydraulic fracturings?
Technique used to extract oil/natural gasses from tight formations
What is peat?
Precursor to coal
What are the 4 coal ranks
Peat
Lignite bituminous anthracite
Define peat
Partially decayed vegetation matter.
×Precursor to coal
*Forms in areas with high water Cintent.
What is lignite
It forms when peat is exposed to increased pressure &tenperatures
what is bituminous
Soft coal
×Usrd in usa to generate electric
-Sedimentary origin
What is anthracite
Hard coal.
- Requires high pressure &temperatures to develop in geologic layers (metamorphic orgin)
- Highest energy value
