Term
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Definition
2000 Kcals/day/person (minimum)
Hunt./gath. and adv. hunt./gath.
small population with little env. effect |
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Term
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Definition
12,000 Kcals/dar/person
10,000-12,000 years ago -- switch from h/g to agr.
settlements
slash and burn
low population density ad pop. growth |
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Term
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Definition
60,000 Kcals/day/person
change from renewable to non-renewable resources
urban
reliable food supply=longer life-span
pop. begins to increase rapidly |
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Term
| Information and Globalization |
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Definition
125,000 Kcals/day/person(260,00 for US)
rapid acquisition of technology and information
better understanding of env. and problems
use of more resources and energy |
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Term
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Definition
| Native American -- primarily h/g with little impact |
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Term
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Definition
world belongs to man
resources are inexhaustible
Gov. land to private sector
Homestead Act of 1862
Gov. closed frontier in 1890 |
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Term
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Definition
1832-1870
Resource depletion and degradation
set aside public lands as wilderness |
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Term
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Definition
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Term
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Definition
Forest Reserve act of 1891
John Muir
Teddy Roosevelt
After WW2 promoted resource removal from public lands |
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Term
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Definition
started Sierra Club in 1892
leader of Preservation Movement |
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Term
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Definition
Power to designate wilderness refuges
1905-Nat'l Forest Service
1906- Antiquities Act |
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Term
| When was the Nat'l Park Service established? |
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Definition
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Term
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Definition
bought large tracts of land from private sector
civilian conservation corp(CCC)
TVA- build dams, hydro-power, reforest areas
Soil Conservation Act |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| protect undeveloped land as part of National Wilderness System |
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Term
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Definition
Paul Ehrlich
1968
addressed over population and depletion of resources |
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Term
| When was the first earth day? |
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Definition
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Term
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Definition
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Term
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Definition
1973
Federal Gov. protects animals and plants
Bald Eagle |
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Term
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Definition
1977
regulations to control air pollution |
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Term
| Clean Air Act driving forces |
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Definition
acid rain (1972)
CFC's destroy ozone (1974) |
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Term
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Definition
1979
formed to oversee energy use and regulate energy production |
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Term
| Department of energy driving forces |
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Definition
3 mile island
oil embargo |
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Term
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Definition
| uses antiquities act to triple wildlife system and Nat. Parks |
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Term
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Definition
| increased timber and mining on federal land , cut research money, and lowered air and water quality standards |
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Term
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Definition
uses antiquities act in lower 48 states
strengthens env. movement |
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Term
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Definition
cuts EPA funding, research money,
relaxes air and water standards
increases private use of federal lands |
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Term
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Definition
has mass and occupies spaces
exists in elements and compounds |
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Term
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Definition
115 known
92 natural and 23 man made
arranged by physical properties in periodic table |
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Term
| building clocks of elements |
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Definition
| protons, neutrons and electrons |
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Term
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Definition
| atom that has an electrical charge |
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Term
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Definition
| atom with different number of neutrons |
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Term
| 8 common elements of the earth's crust |
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Definition
| O, Si, Al, Fe, Ca, Na, K, Mg |
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Term
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Definition
combo of elements
most matter is in this form |
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Term
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Definition
opposite charges attract
most compounds |
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Term
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Definition
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Term
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Definition
C, H, O, N, P, Cl, F with C-H covalent bond
natural or man made |
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Term
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Definition
all non- C-H compounds
all minerals and most rocks |
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Term
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Definition
| physical not chemical combo |
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Term
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Definition
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Term
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Definition
| stored energy, or the capacity to perform work |
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Term
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Definition
| energy that does work on something and/or energy of motion and reaction |
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Term
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Definition
electro magnetic radiation
gamma rays to radio waves(short to long wavelength) |
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Term
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Definition
| heat from formation of earth and breakdown of radioactive elements |
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Term
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Definition
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Term
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Definition
| measure of kinetic energy |
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Term
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Definition
| convection, conduction, radiation |
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Term
| Law of conservation of matter |
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Definition
| the earth is a closed system |
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Term
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Definition
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Term
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Definition
depends on:
type, concentration, persistence, degradable, slowly degradable, non-degradable |
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Term
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Definition
| constant, spontaneous breakdown of matter |
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Term
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Definition
| 10 half-lives for matter to be safe |
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Term
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Definition
| internal damage from Beta Particles and Gamma ray |
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Term
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Definition
tissue damage
burns, skin cancer |
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Term
| 1st law of thermodynamics |
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Definition
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Term
| 2nd law of thermodynamics |
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Definition
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Term
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Definition
| how organisms interact with each other and non-living environment |
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Term
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Definition
1.8 million known
3 to 100 million may exist(10 million likely) |
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Term
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Definition
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Term
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Definition
| group of individuals of the same species |
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Term
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Definition
| population of different species in the same place at the same time |
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Term
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Definition
| community of different species and non-living env. |
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Term
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Definition
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Term
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Definition
hydrosphere (fresh and salt water)
cryosphere(ice)
lithosphere(rocks and minerals)
atmosphere(troposphere and stratosphere) |
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Term
| Biosphere is maintained by |
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Definition
one way flow of energy
cycling of water
gravity |
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Term
| Solar energy input and output |
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Definition
most input as visible light
30% reflected 70% absorbed. .023% photosynthesis
output as heat into space |
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Term
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Definition
water recycled and purified
human impact |
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Term
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Definition
CO2 in atoms. Used in photosynthesis
passed to animals
back to soil and water
CO2 in and out of ocean
Human impact |
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Term
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Definition
78% of atmosphere - not usable
Nitrogen fixing bacteria in ammonia
Other bacteria to nitrate
taken in by plants and animals
Decomposes back to gas
human impact |
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Term
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Definition
Cycle from rocks to water to critters
Human impact |
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Term
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Definition
| modeling of natural systems |
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