Environmental science
What measures should be taken to protect the public from the special hazards presented when mining uranium?
Must be kept from populated areas
surface mining can cause what type of pollution?
air and noise
where do evaporates most commonly form?
arid areas
gangue minerals have no what?
commercial value
what Act regulates the release of hazardous substances into the air, soil, and water by mining?
compensation & liability act
from whom must mining companies obtain permits from before mining a site?
federal and state environmental agencies
dredging streambeds may be an effective technique for mining what?
gold
what is one property that may be used to distinguish metallic from nonmetallic minerals?
metallic minerals are good for electricity
through what can mining companies identify areas where there may be valuable mineral resources
mineral exploration
what can contaminate a river during dredging?
muddy sediments and arcenents
identify 3 characteristics of minerals
naturally occurring inorganic solid orderly in internal structure
a quarry can also be called what type of mining?
open put
what type of mineral contains valuable substances?
ore mineral
collapse of what can lead to subsidence
pillars
the 3 substances that can be mined using solution mining
pot ash sulfur salt
reclamation is the process of what?
returning land to better
the layer of impurities on top of molten metal that forms during smelting is called what?
slag
what substance contaminate can cause acid mine drainage
sulfuric acid
what Act set standards to minimize the surface effects of coal mining on the environment?
surface mining control and reclamation acts of 1977