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15 Cards in this Set
- Front
- Back
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1st law of thermodymanics
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energy cannot be created nor destroyed
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2nd law of thermodynamics
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-a change from one source to another requires a exert of energy (usually heat)
-partial reason of decay and deterioration |
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1st law of efficiency
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tells how efficient a process really is
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2nd law of efficiency
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tells how efficient a process could be
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use of energy sources order
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1. petroleum
2. natural gas 3. coal 4. alternative sources ... |
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US energy consumption
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25%
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cogeneration
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making heat and energy from the same power source
ex. iowa power plant CHP |
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ANWR geographical facts
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9.1 million acres in Alaska
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yucca mountain: reasons why it is safER
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1. rain shadow areas
2. stableR conditions: low underground activities 3. politics-protesting |
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1002 area of ANWR
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-northeastern that caribou habitat is
-1960: 9 mill set aside for wilderness..but now want to get its oil |
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Scientifically, ___________ is expressed as the number of species in an area.
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A) *biological diversity
B) biological evolution C) genetic drift D) natural selection |
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green revolution
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-post ww2
-resistance to diseases of crops -ex. ddt -helps ppl, but hurts environment |
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percent of world used for agriculture
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11%
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percent of urban living in US
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75%
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DALY improvement from death rate for 2 reasons
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1. weights value of life (adds in years lost due to premature death)
2. accounts for burden of disease (mental illness, HIV infested countries) |
