Sedimentary rock formed from the compacted remains of ancient plant matter
What is coal
Coal is accessed by removing the soil and rock above it
what is strip mining
Energy from the sun
what is solar energy
deposit in which a mineral exist in large enough amounts to be mined at a profits
what is ore
Energy revived from burning organic material such as wood, alcohol, and garbage
what is biomass energy
Liquid hydrocarbon that is often referred to as petroleum
What is oil
removal of coal that is not close to earth's surface through a horizontal opening on the side of a hill
what is drift mining
Large number of windmills placed in one area for the purpose of generating electricity
what is wind farm
composed of crushed stone or a mixture of gravel and sand
what is aggregate
an alternate energy source produced from atomic reactions
what is nuclear energy
the most abundant fossil fuel in the world
what is coal
an angled opening and air shaft are made in the side of a mountain to move the coal
What is slope mining
Electricity produced by water power
what is hydroelectric energy
a mineral that forms when seawater evaporates, is soft and lightwieght
what is gypsum
when materials of low mass are fussed together to form a substance of higher mass
what is fusion
Formed from marine organisms and often used for heating and cooking
What is natural gas
oil and natural gas pumped from underground deposits to the surface
what is drilling
Energy obtained by using hot magma or hot, dry rocks inside earth
what is geothermal energy
a source of silica used to make glass
layer of organic sediment that releases large amounts of smoke when burned
what is peat
thick, black liquid formed form the buried remains of microscopic marine organisms
What is oil
Only used when the coal deposits are close to the surface
what is strip mining
built on the Colorado River and supplies hydroelectric power to a large area
what is the Hoover Dam
using old materials to make new ones
what is recycling
amount of a fossil fuel that can be extracted form earth at a profit using current technology
what is a reserve