Environmental Science
contaminated water that results when acid dissolves toxic minerals remaining in minres and in excess rocks
acid mining drainage
the combination of two or more metals
alloy
a quarry could also be called
an open pit
a serious hazard of coal mining is
an underground mine fire
Evaporites most commonly form in
arid regions where rates of evaporation are high
which of the following is not a characteristic of a mineral
atoms in random patterns
funds posted before a mining project begins
bond
surface mining can cause
both air and noise pollution
Conductors of heat and electricity
certain metals
ensures that contaminants from mining do not threaten water resources
clean water act
two or more atoms chemically bonded
compound
regulates release of hazardous substances into the air,soil, or water
comprehensive response compensation and liability act
a law that regulates the release of hazardous substances into the air soil and water by mining operations
compressive response compensation and liability act
not affected when soil is removed form a suface mine
deep coal seams
one reason why undersea mining has been largely unsuccessful to date
deposits at great water depths are diffcult to work
What do hot, subsurface waters contain when they are identified as hydrothermal solutions?
dissolved minerals
a floating barge on which buckets fixed on a conveyor excavate sediments
dredge
large piles of excess rock from mines
dumps
what is one property that may be used to distinguish metallic from non metallic minerals
electrical conductivity
ensures that mining will not affect threatened species
endangered species act
solar evaporation is practical in order to obtain salt from the sea water in climates where rainfall is exceeded
evaporation
the first step in finding an ore deposits
exploring rock formations for mineralization
which of the following is not a way that ore minerals may form
flooding of empty streambeds and rivers
a material that bonds with impurities and separates them from molten metal during smelting
flux
minerals that have no commercial value
gangue minerals
nonmeatallic minerlas prized mainly for their beauty raity or duarbility are called
gemstones
nonmetallic minerals prized for their beauty,rarity or durability
gemstones
topaz and tourmaline
gemstones
dreading steamboats may be an effective technique for mining
gold
for mining to be profitable, the price of the final product must be
greater than the costs of extraction and refining
a major component of concrete
gypsum
whcih of the following would not likely be mined using solution
gypsum
a substance used in manufacturing computer chips
industrial sand
ming companies can identify areas of valuable mineral resources by
mineral exploration
placer deposits are surface deposits concentrated by
movement of wind and water
what can contaminate a river as a result of dredging
muddy sediments
what types of minerals are among the most widely used in the world
nonmetals
minerals that are commercial to extract
ore minerals
Rocks that cover coal seams near the surface
overburden
subsidence can result from the collapse of
pillars in abandoned mines
the value of a mineral is determined by its
properties
before mining a site a mining company must do all the following except
regular repeating geometric patterns
a network of entries in coal mines
rooms
ensures that contaminates from mining do not threaten drinking water
safe drinking water act
which of the following is an example of a gemstone
sapphire
a layer of impurities that forms atop molten metal during smelting
slag
water contaminant that can cause acid mine drainage
sulfuric acid
minimizes the surface effects of mining on the environment
surface mining control and reclamation act
a law that set standards to minimize the surface effects of coal mining on the environment
surface mining control and reclamation act of 1977
not a regulation mining companies must follow
the hazardous products act
the first step in surface coal mining is
to remove and set aside the soil that covers the area to be mined
ore deposits formed in cracks in rocks
veins
about what percent of the world salt comes from the solar evaporation process
30