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Biology Final Exam 157 LaSalle
Biology
61
Biology
Undergraduate 2
05/06/2014

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Term
1972 Clean Water Act
Definition
National Pollution Discharge Elimination System: no dumping in surface waters. 10% of water pollution comes from industrial point sources
Term
Causes of Water Impairment
Definition
Pathogens, Mercury, Metals, Sediment
Term
Ocean Pollution
Definition
bays, estuaries, etc. are effected by this. Dead zones and algae blooms increase dramatically.
Term
Flotsam/Jetsam
Definition
plastic that is dumped in the ocean that sits idle since it does not decompose.
Term
Pollution Control
Definition
Avoid producing and releasing it. Recycling is a big help in reducing pollution.
Term
point sources
Definition
you can physically point out the pollution location
Term
nonpoint sources
Definition
you can't point out the pollution location
Term
Pathogenic Organisms
Definition
typhoid, cholera, polio
Term
Primary Treatment
Definition
physically separate large solids from the waste stream with screens and settling tanks.
Term
Secondary Treatment
Definition
uses bacteria to break down dissolved organic compounds. Treatment processes are usually disinfecting to kill harmful bacteria/pathogens
Term
Tertiary Treatment
Definition
removes dissolved metals and nutrients (nitrates & phosphates)
Term
New Pollutants in Water
Definition
steroids, non-prescription drugs, insect repellant
Term
Constructed Wetlands
Definition
artificial marsh complexes designed to filter and decompose waste. (california has the best)
Term
"Living Machine"
Definition
Cedar Grove Factory Cheese Factory with tanks, bacteria, algae, and artificial wetlands. converts to pure water and wetland flowers
Term
bioremediation
Definition
living organisms cleaning contaminated water effectively.
Term
Domestic Water Use
Definition
Toilets, Laundry, Showers are the top 3
Term
Water Conservation
Definition
38 millions gallons per day the US is saving. low flush toilets, and efficient irrigation systems
Term
Dust Bowl
Definition
worst experience of water scarcity in the US so far. Cyclical droughts.
Term
Agriculture and water use
Definition
Agriculture takes up about 70% of water withdrawal
Term
Water Withdrawals
Definition
European countries use about 70% of water for industry and less developed countries use about 5%. shows the disproportion.
Term
Industrial Use of water
Definition
cooling water for power plants takes about 50-75% of industrial withdrawal. Also used for biofuel production, 4 to 5 liters for 1 liter of ethanol
Term
Disproportionate domestic water usage
Definition
UN reports that people in developed countries use about 10x the amount of water than developing countries
Term
Groundwater
Definition
groundwater accounts for 40% of fresh water for agricultural and domestic uses in the United States. Water withdrawal is too fast and subsidence or sinking of the ground surface
Term
Aquifer Depletion
Definition
saltwater intrusion
Term
Redistribution of Water
Definition
dams and canals are help to redistribution for farms and cities (3 gorges dam in china) Aral Sea is basically all dry
Term
Water in the Body
Definition
60% of your body is water
Term
Fracking
Definition
obtain natural gas from the ground and replacing it with water
Term
Hydrologic Cycle
Definition
evaporation, condensation, passes through living organisms and returns to the ocean
Term
Major Water Compartments
Definition
97.6% Ocean Water; 2.4% Fresh Water; 87.2% Ice & Snow; 12.0% Groundwater
Term
Zone of Aeration
Definition
shallow layer of soil containing both air and water
Term
Zone of Saturation
Definition
Lower soil layer with pores filled with water
Term
Water Table
Definition
top of zone of saturation that supplies most wells
Term
Aquifers
Definition
porous layers of sand and gravel or of cracked porous rock.
Term
Dissolved Oxygen
Definition
is used to measure to compare water quality in different places
Term
Biochemical oxygen demand
Definition
is the amount of dissolved oxygen consumed by aquatic microorganisms
Term
Dissolved Oxygen Levels(zones)
Definition
Clean Zone, Decomposition Zone, Septic Zone, Recovery Zone
Term
oligotrophic
Definition
little nutrition in very clean water
Term
eutrophic
Definition
well nourished. rich in nutrients
Term
two sources of toxic chemicals
Definition
1) improper disposal of waste
2)pesticide runoff from farm fields, forests, roadsides
Term
Largest source of water pollution
Definition
Silt and Sediment because it blocks sunlight to the life in the water. killing all
Term
Thermal Pollution
Definition
cooling systems of power plants alters water temperature, killing organisms
Term
Carbon Production
Definition
1/2 pound of carbon dioxide for an hour of TV.
Term
Wallace Broecker
Definition
climate scientist that said: "Climate is an angry beast, and we are poking it with sticks"
Term
climate
Definition
longer periods of time, greater area of space
Term
Phytoplankton
Definition
They take sunlight to make more phyto. they need places that are high in iron
Term
Iron in Phytoplankton
Definition
provided micronutrient that is essential to being an electron carrier and catalyst during photosynthesis
Term
Air Components
Definition
78% Nitrogen, 21% Oxygen, 1% Argon, CO2, and others.
Term
Aerosols
Definition
minute particles and liquid droplets suspended in the air
Term
Convection Currents
Definition
within the troposphere, air circulates in vertical and horizontal currents
Term
Ozone
Definition
O3 in the stratosphere, has no water vapor and 1000x more of ozone.
Term
Greenhouse Effect
Definition
transmits while trapping heat inside comparable to a greenhouse
Term
Latent Heat
Definition
stored energy in water vapor
Term
Ocean Currents
Definition
they modify our climate significantly (El Nino)
Term
Ice Cores
Definition
Age: Look at the rings, isotopes
Temperature: composition of ice cores
CO2: concentration determined from bubbles in ice
Term
Deuterium
Definition
also known as Heavy Hydrogen, is a stable isotop of hydrogen with a natural abundance in the ocean
Term
Milankovitch Cycles
Definition
serbian scientist that discovered periodic shifts in the earth's orbit and tilt
Term
Mauna Loa Observatory
Definition
began continuous atmospheric CO2 measurements in 1958, located on Mauna Loa, a mountain in Hawaii to get away from pollution
Term
Climate Change
Definition
change in 1 degree every year. Permafrost is melting, glaciers are retreating, acidified oceans
Term
Local Mean Sea Level
Definition
defined as the height of the sea with respect to a land benchmark, averaged over a period of time
Term
CO2 in the Ocean
Definition
creates carbonic acid. the pH levels are decreasing hurting shell builders and coral reefs
Term
Global Warming concerning Insects
Definition
a boom of insects
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