Energy Past & Present: Question Preview (ID: 6272)

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A mixture of gaseous hydrocarbons, primarily methane, occurring naturally in the earth, used principally as a fuel in the production of heat, electricity, or in transportation.
a) kerosene
b) propane
c) natural gas
d) diesel fuel

A solid combustible substance formed by the partial decomposition of vegetable matter without access to air.
a) peat
b) perlite
c) coal
d) petroleum

A chemical substance used to produce heat or power when burned.
a) energy
b) electricity
c) fusion
d) fuel

A Fuel that is created naturally, or by human intervention at a relatively rapid rate, and therefore does not run out.
a) fossil fuel
b) natural gas
c) non-renewable fuel
d) renewable fuel

Anything necessary to produce something is called a.
a) fuel
b) resource
c) mine
d) asset

A soft coal with low heat content and about 40% moisture, also called brown coal.
a) lignite
b) anthracite
c) bituminous
d) peat

A hard coal with a high heat content and low moisture and sulfur content.
a) peat
b) lignite
c) anthracite
d) bituminous

An organic chemical compound made up of hydrogen and carbon in either gaseous, liquid, or solid phase.
a) coal
b) petroleum
c) hydrocarbon
d) natural gas

Describes a substance that liquids and gases cannot pass through.
a) permeable
b) impermeable
c) porous
d) non-porous

The United States has less than 5% of the worlds population, yet we consume about _____ of the worlds energy.
a) 1/2
b) 1/3
c) 1/4
d) 2/3

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