enery resources Flashcards

1
Q

What are the 3 energy types

A

Fossil fuels

  • Nuclear energy
  • Alternative energy
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2
Q

3Forms of fossil fuels

A

Coal oil

Natural gas

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3
Q

Define fossil fuels

A

Hydrocarbons created from the natural decay of organic material

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4
Q

In the usa fossil fuels acct for what % of energy consumption

A

85%

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5
Q

List alternative (renewable)energy sources

A

Solar

  • Wind geothermal
  • biomass
  • Hydroelectric
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6
Q

Coal comes from

A

Algal remains (marine)

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7
Q

The most abundant gas

A

Methane (ch4)

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8
Q

Natural gas is a by product of what?

A

Thermal maturation of oil and coal

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9
Q

Advantages of fossil fuels

A
  • Low cost *capacity to generate enormous amounts of energy
  • Global availability
  • Existing infastructure
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10
Q

Define resources

A

Includes all deposites on earth. (Known & undiscovered, economical & aren’t economical yet

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11
Q

What are reserves?

A

Known quantity of resources that can be extracted economically by todays standards

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12
Q

What is hydraulic fracturings?

A

Technique used to extract oil/natural gasses from tight formations

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13
Q

What is peat?

A

Precursor to coal

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14
Q

What are the 4 coal ranks

A

Peat

Lignite bituminous anthracite

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15
Q

Define peat

A

Partially decayed vegetation matter.
×Precursor to coal
*Forms in areas with high water Cintent.

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16
Q

What is lignite

A

It forms when peat is exposed to increased pressure &tenperatures

17
Q

what is bituminous

A

Soft coal
×Usrd in usa to generate electric
-Sedimentary origin

18
Q

What is anthracite

A

Hard coal.

  • Requires high pressure &temperatures to develop in geologic layers (metamorphic orgin)
  • Highest energy value