Natural Hazards
Energy Sources and Uses
Resource Extraction
Nuclear Power
Waste Disposal
100
gradual movement of the soil
What is creep
100
the most efficient fuel
What is natural gas
100
the world's third largest commercial fuel
What is natural gas
100
the amount of the US energy supply is supplied by nuclear power
What is 7%
100
the US produces this amount of solid waste each year
What is 11 billion tons
200
when shaking causes the soil to lose structure
What is soil liquefaction
200
organic chemicals created by living organisms that were buried in sediments millionsof years ago and transformed to energy-rich compounds
What are fossil fuels
200
the largest single source of acid rain for many areas
What is coal burning
200
the common fuel for nuclear reactors
What is U235 (radioactive isotope of uranium)
200
the steady flow of varied wastes we all produce
What is the waste stream
300
the sources of the most of the earth's crust
What are volcanoes and undersea magma
300
the top three commercial uses of energy
What are industry, residential and commercial buildings, and transportation
300
the amount of coal that is burned in the US for electric power generation
What is 900 million tons
300
70% of nuclear power plants are this type of reactor
What is PWRs, pressurized water reactors
300
a way to dispose of waste that involves placing all waste in one open location
What is open dumps
400
the human/environmental dangers of volcanoes (3 of 5)
What are "glowing clouds", mudslides, ash and dust, sulfur emission
400
a rock in which a valuable or useful metal occurs at a concentration high enough to make mining it economically attractive
What is ore
400
oil often contains a high level of this- it is corrosive
What is sulfur
400
in a PWR, water is circulated through the core to absorb heat from these
What are fuel rods
400
a way to dispose of waste that is controlled and regulated. Waste is covered by a layer of dirt each day.
What are sanitary landfills
500
when large piles of crushed ore are sprayed with alkaline cyanide solution that percolates through the pile to dissolve gold
What is heap-leach extraction
500
the problems with natural gas (3)
What are difficult to ship across oceans, to store in large quantities, and much waste from flaring off
500
one of the biggest problems associated with nuclear power
What is the disposal of wastes
500
the process of burning refuse to reduce the disposal volume by 80-90%
What is incineration
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