Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
Ionization Radiation
|
enought energy to knock electrons from atoms forming ions, capable of causing cancer.
Ex. gamma xra-UV |
|
|
High Quality Energy
|
organized & concentrated, can perform useful work
Ex. Fossil Fuel & Nuclear |
|
|
Low Quality Energy
|
disorganized, dispersed
(heat in ocean or air, wind, solar) |
|
|
1st Law of Thermodynamics
|
energy is neither created nor destroyed, but may be converted from one form to another
|
|
|
2nd Law of Thermodynamics
|
when energy is changed from one form to another, some useful energy is always degraded into lower quality energy
(usually heat) |
|
|
Natural Radioactive Decay
|
unstable radioisotopes decay releasing gamma rays, alpha and beta particles
|
|
|
Half-Life
|
the time it takes for 1/2 the mass of a radioisotope to decay
|
|
|
Estimation of radioactive isotope must be stored until it decays to safe level
|
approximately 10 half-lives
|
|
|
Nuclear Fission
|
nuclei of isotopes split apart when struck b y neutrons
|
|
|
Nuclear Fusion
|
2 isotopes of light elements (H) forced together at high temperatures until they fuse to form a heavier nucleus. Expensive, break even point not reached yet.
|
|
|
Ore
|
a rock that contains a large enough concentration of a mineral making it profitable to mine
|
|
|
Organic Fertilizer
|
slow acting & long lasting because the organic remains need time to be decomposed
|
|
|
Best solution to Energy Shortage
|
Conservation and increase efficiency
|
|
|
Surface Mining
|
cheaper and can remove more mineral, less hazardous to workers
|
|
|
Humus
|
organic, dark material remaining after decomposition by microorganisms
|
|
|
Leaching
|
removal of dissolved materials from soil by water moving downwards
|
|
|
Illuviation
|
deposit of leached material in lower soil layers (B)
|
|
|
Loam
|
perfect agricultural soil with equal portion of sand, silt, clay
|
|
|
Conservation
Preservation |
allows the use of resources in a responsible manner
setting aside areas & protecting them from human activities |
|
|
Parts of Hydrologic Cycle
|
evaporation, transpiration, runoff, condensation, precipitation, infiltration
|
|
|
Aquifer
|
any water bearing layer in the ground
|
|
|
Cone of Depression
|
lowering of water table around a pumping well
|
|
|
Salt Water Intrusion
|
near the coast, overpumping of ground water causes saltwater to move into the aquifer
|
|
|
ENSO
|
El Nino Southern Oscillation
see-sawing of air pressure over South Pacific |
|
|
During El Nino Year
|
trade winds weaken & warm water slashed back to SA
|
