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energy unit test
Terms in this set (28)
How many pounds (lbs) of salt will an average American need in their life?
Mining is the process or industry of obtaining ____________, _________, or coal from a mine.
What is a mineral? You have to SNIF and C
S - ___solid________
N - __naturally_________occurring
I - Inorganic solid
F - Fixed chemical composition
C - ____crystal_______structure
What minerals are valuable and economical to extract?
What minerals have no commercial value?
What minerals conduct electricity, have shiny surfaces, and are opaque?
metallic minerals Examples: gold and silver
What minerals tend to be good insulators, may have shiny or dull surfaces, and may allow light to pass through them?
nonmetallic minerals Examples: diamond and amethyst
Ore deposits that are found ________ beneath the surface are mined using subsurface mining methods.
__________ mining methods are used when ore deposits are located close to the surface.
The ocean floor contains mineral resources.
____________ and Magnesium
It is _____________ to mine on land than underwater.
What are impacts of mining?
Air and noise pollution, Water contamination, Displacement of wildlife, Erosion and sedimentation, Underground mine fires, and e-waste
problem: Mine runoff & erosion threatening water quality
regulation: the clean water act and the safe drinking water act
problem: Hazardous waste and pollution into the air, soil, and water
regulation: comprehensive response compensation liability act (CRCLA)
problem: Mining activity in the habitat of threatened or endangered species
regulation: endangered species act (ESA)
problem: Cutting corners on human and environmental safety saves $
regulation: State issues permits specify standards for design, safety, and reclamation.
problem: Mines go bankrupt or dissolve before closure & reclamation
regulation: Mining companies must also post a bond with funds that the state can use to pay for closure & reclamation.
problem: Asking the mines to self-assess and enforce policies means they may cut corners
regulation: State agencies are in charge of environmental and safety inspections
Reclamation is the process of returning land to its ____or better________________________ after mining is completed.
problem: reclamation is expensive and hard
regulation: (SMCRA) The Surface Mining Control and Reclamation Act of 1977 = A set of standards that regulates surface coal mining on private and public land in order to minimize the surface effects of mining.
People in _______________ countries use ________________ energy than people in developing countries use.
The US uses more energy _______________ than most other countries in the world.
Nonrenewable energy resource = An energy source with a ___________ supply that cannot be regenerated naturally within ~_______ yrs after use
per person, 100 Examples:
Fossil Fuels are burned to produce warmth, which is used to ________________
The water turns into steam, and the _______________________________________________ .
The turbine turns an electrically conductive material within the magnetic field inside the ______________ ________________, which produces energy.
boil water, steam turns a turbine, electrical generator
he value of fossil fuels is determined by:
Cost, Availability, supply & demand, global politics, safety, energy content, and byproducts of the fuels use
Coal = A _______________ fuel formed primarily from the remains of ___________________________ ________________________________ materials preserved 280 million to 360 million years ago.
solid, trees ferns and other plant
Most ________________ and ________________ of fossil fuels
types of coal
lignite, bituminous, anthracite
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