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25 Cards in this Set
- Front
- Back
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sustainability
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can be continued indefinitely without depleting any of the material or energy reousrces required to keep it running
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sustainable society
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a society that functions in a way so as not to deplete the energy or material resources on which it depends.
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capital
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capital = goods + services
must protect the capital and live off the income it provides |
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Four components of the Earth system
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Atomoshphere-> air
Hydrosphere-> water Lithosphere-> food Biosphere-> all living things |
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Energy
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the ability to do "work" and transfer heat
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Kinetic Energy
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energy in action or motion
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Potential Energy
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energy in storage has the capacity to release kinetic energy
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First Law of Thermodynamics
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in all physical and chemical changes, energy is not created nor destroyed, although it may be converted
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Second Law of Thermodynamics
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whenever energy changes from one for to another we always end up with less usable energy than we had initially.
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Photosynthesis
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6Co(2)+ 6H(2)0 -> C(6)H(12)0(6) + 6O(2)
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Respiration
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C(6)H(12)O(6) -> 6CO(2) + 12H(2)O
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Producers
Primary Consumers Secondary Consumers |
Plants
Herbivores Carnivores |
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Extinction rate
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.01% or 10,000 a year
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Decline of Biodiversity
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a.) physical change of environment
b.) pollution c.) invasive species d.) population connection |
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Instrumental value
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usefulness to us in the form of economic and ecological services
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Intrinsic Value
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a species has value for it's own sake
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CITES
ESA |
aim is to ensure that international trade in specimens of wild animals and plants does not threaten their survival
Ecological society of american |
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Importance
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1. Food Security
2. Sources of Medicine 3. Recreational and aesthetic value 4. value for their own sake |
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Population Change Equation
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(Births +Immigrants) - (Deaths + Emmigration)
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Reasons for the fast population increase
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1.) advances in agriculture allows more people to be fed
2.)medican technologies and sanitation lower death rate increase life expectancy |
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I =P x A x T
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I= Impact of human activities
P= Population A= Affluence T- Technology |
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Environmental problems caused by urbanization
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concentrated pollution
Climate change |
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Bioaccumulation
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The accumulation of higher and higher concentrations of potentially toxic chemicals
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Biomagnification
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Bioaccumulation occuring through several levels of a food chain
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How many plants are ruined
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30% ! !
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