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Ap environmental
definitions for all chapters
150
Environmental Studies
11th Grade
10/10/2014

Additional Environmental Studies Flashcards

 


 

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Term
Abiotic
Definition
nonliving
Term
acid/acid solution
Definition
any water solution that has more hydrogen ions than hydroxide ions: any water solution with a Ph less than 7
Term
acid deposition
Definition
the falling of acids and acid-forming compounds from the atmosphere to the earths surface (acid rain)
Term
acidity
Definition
chemical characteristic that helps determine how a substance dissolved in water will interact with and affect its environment: based on the comparative amounts of hydrogen ions and hydroxide ions contained in a particular volume of the solution
Term
active solar heating system
Definition
systems that uses solar collectors to capture energy from the sun and store it as heat form the sun and store it as heat for space heating and water heating. Liquid or air pumped through the collectors transfers the captured heat to a storage system such as an insulated water tank or rock bed.
Term
adaption
Definition
any genetically controlled structural, physiological, or behavioral characteristic that helps an organism survive and reproduce under a given set of environmental conditions
Term
aerobic respiration
Definition
complex process that occurs in the cells of most living organisms, in which nutrients organic molecules such as glucose combined with oxygen produce carbon dioxide. water and energy.
Term
affluence
Definition
wealth that results in high levels of consumption and unnecessary waste of resources, based mostly on the assumption that buying more and more material goods will bring fulfillment and happiness
Term
age structure
Definition
percentage of the population (or number of people of each sex) at each age level in a population.
Term
agroforestry
Definition
planting trees and crops together
Term
air pollution
Definition
one or more chemicals in high enough concentrations in the air to harm humans, other animals, vegetation, or materials. excess heat is also considered a form of air pollution. such as chemicals or physical conditions are called air pollutants.
Term
albedo
Definition
ability of a surface to reflect light
Term
alien species
Definition
(see nonnative species)
Term
alley cropping
Definition
planting of crops in strips with rows of trees or shrubs on each side
Term
alpha particle
Definition
positively charged matter, consisting of two neutrons and two protons, which is emitted as radioactivity from the nuclei of some radioisotopes
Term
altitude
Definition
height above sea level
Term
anaerobic respiration
Definition
form of cellular respiration in which some decomposers get the energy they need through the breakdown of glucose in the absence of oxygen
Term
ancient forests
Definition
(see old-growth forest)
Term
animal manure
Definition
dung and urine of animals used as a form of organic fertilizer.
Term
annual
Definition
plant that grow, sets seeds, and dies in one growing season
Term
applied ecology
Definition
(see reconciliation ecology)
Term
aquaculture
Definition
growing and harvesting of fish and shellfish for human use in freshwater ponds, irrigation ditches, and lakes, or in cages or fenced-in areas of coastal lagoons and estuaries or in the open ocean
Term
aquatic
Definition
pertaining to water
Term
aquatic life zone
Definition
marine and freshwater portions of the biosphere.
Term
aquifer
Definition
porous, water-saturated layers of sand, gravel, or bedrock that can yield an economically significant amount of water.
Term
arable land
Definition
land that can be cultivated to grow crops
Term
area strip mining
Definition
type of surface mining used where the terrain is flat. an earthmover strips away the overburden, and a power shovel digs a cut to remove the mineral deposit, the trench is then filled with overburden, and a new cut is made parallel to the previous one. the process is repeated over the entire site.
Term
arid
Definition
dry. a desert or other area with an arid climate has little precipitation.
Term
artificial selection
Definition
process by which human select one or more desirable genetic traits in the population of a plant or animal species and then use selective breeding to produce population containing many individuals with the desired traits
Term
asexual reproduction
Definition
reproduction in which a mother cell divides to produce two identical daughter cells that are clones of the mother cell. this type of reproduction is common in single-celled organisms.
Term
asthenosphere
Definition
zone within the earth's mantle made up of hot, partly melted rock that flows and can be deformed like soft plastic
Term
atmosphere
Definition
whole mass of air surrounding the earth
Term
atmospheric pressure
Definition
force of mass per unit area of air, caused by the bombardment of a surface by the molecules in air.
Term
atom
Definition
minute unit made of subatomic particles that is the basic building block of all chemical elements and thus all matter; the smallest unit of and element that can exist and still have the unique characteristic of that element.
Term
atomic number
Definition
number of protons in the nucleus of an atom
Term
atomic theory
Definition
idea that all elements are made up of atoms; the most widely accepted scientific theory in chemistry.
Term
artificial selection
Definition
process by which human select one or more desirable genetic traits in the population of a plant or animal species and then use selective breeding to produce population containing many individuals with the desired traits
Term
asexual reproduction
Definition
reproduction in which a mother cell divides to produce two identical daughter cells that are clones of the mother cell. this type of reproduction is common in single-celled organisms.
Term
asthenosphere
Definition
zone within the earth's mantle made up of hot, partly melted rock that flows and can be deformed like soft plastic
Term
atmosphere
Definition
whole mass of air surrounding the earth
Term
atmospheric pressure
Definition
force of mass per unit area of air, caused by the bombardment of a surface by the molecules in air.
Term
atom
Definition
minute unit made of subatomic particles that is the basic building block of all chemical elements and thus all matter; the smallest unit of and element that can exist and still have the unique characteristic of that element.
Term
atomic number
Definition
number of protons in the nucleus of an atom
Term
atomic theory
Definition
idea that all elements are made up of atoms; the most widely accepted scientific theory in chemistry.
Term
autotroph
Definition
(see producer)
Term
background extinction rate
Definition
normal extinction of various species as a result of changes in local environmental conditions
Term
bacteria
Definition
prokaryotic, one-celled organisms. some transmit diseases. most act as decomposers and get the nutrients they need by breaking down complex organic compounds in the tissues of living or dead organisms into simpler inorganic nutrient compounds.
Term
basic solution
Definition
water solution with more hydroxide ions than hydrogen ions; water solution with a pH greater than 7.
Term
benthos
Definition
bottom-dwelling organisms.
Term
beta particle
Definition
swiftly mobbing electron emitted by the nucleus of a radioactive isotope.
Term
bioaccumulation
Definition
an increase in the concentration of a chemical in specific organs or tissues at a level higher than would normally be expected.
Term
biocentric
Definition
life-centered
Term
biodegradable
Definition
capable of being broken down by decomposer
Term
biodegradable pollutant
Definition
materials that can be broken down into simpler substances by bacteria or other decomposers. paper and most organic wastes can take decades to biodegrade in modern landfills
Term
biodiversity
Definition
variety of different species, genetic variability among individuals within each species, variety of ecosystems and functions such as energy flow and matter cycling needed for the survival of species and biological communities
Term
biodiversity hotspot
Definition
an area especially rich in plant species that are found nowhere else and are in great danger of extinction. such areas suffer serious ecological disruptions, mostly because of rapid human population growth and the resulting pressure on natural resources.
Term
biofuel
Definition
gas(such as methane) or liquid fuel(such as ethyl alcohol or biodiesel)made from plant materials.
Term
biochemical cycle
Definition
natural processes that recycle nutrients in various chemical forms from the nonliving environment to living organisms and then back to the nonliving environment
Term
biological amplification
Definition
(see biomagnification)
Term
biological community
Definition
(see community)
Term
biological diversity
Definition
(see biodiversity)
Term
biological evolution
Definition
change in the genetic makeup of a population of a species in successive generations. if continued long enough, it can lead to the formation of a new species. NOTE that populations, not individuals, evolve.
Term
biological extinction
Definition
complete disappearance of a species from the earth. it happens when a species cannot adapt and successfully reproduce under new environmental conditions or when a species evolves into one or more new species.
Term
biological pest control
Definition
control of pest population by natural predators, parasites, or disease-causing bacteria and viruses.
Term
biomagnification
Definition
increasee in concentration of DDT, PCBs, and other slowly degradable, fat-souble chemicals in organisms at succesively higher trophic levels of a food chain or web
Term
biomass
Definition
organic matter produced by plants and other photosynthetic prducers; total dry weight of all living organisms that can be supported at each trophic level in a food chain or web; dry weight of all organic matter in plants and animals in an ecosystem; plant materials and animal wates used as fuel
Term
biome
Definition
terrestrial regions inhabited by certain types of like, especially vegetation.
Term
biomimicry
Definition
process of observing certain changes in nature, studying how natural systems have responded to such changing conditions over many millions of years, and applying what is learned to dealing with some environmental challenge.
Term
bioshpere
Definition
zone of the earth where life is found. it consists of parts of the atmosphere ,hydrosphere, and lithosphere where life is found
Term
biotic
Definition
living organisms
Term
biotic pollution
Definition
the effect of invasive species that can reproduce or wipe out populations of many native species and trigger ecological disruption.
Term
biotic potential
Definition
maximum rate at which the population of a given species can increase when there are no limits on its rate of growth.
Term
birth rate
Definition
(see crude birth rate)
Term
bitumen
Definition
gooey, black, high-sulfur, heavy oil extracted from tar sand and then upgraded to synthetic fuel oil
Term
broadleaf deciduous plants
Definition
plants such as oak and maple trees that survive drought and cold by shedding their leaves and becoming dormant
Term
broadleaf evergreen plants
Definition
plants that keep most of their broad leaves year-round.
Term
buffer
Definition
substance that can react with hydrogen ions in a solution and thus hold the acidity or pH of a solution fairly constant.
Term
calorie
Definition
unit of energy; amount of energy needed to raise the temperature of 1 gram of water by 1 degree celcius
Term
cancer
Definition
group of more than 120 different diseases, one for each type pf cell in the human body. Each type of cancer produces a tumor in which cells multiply uncontrollably and invade surrounding tissue.
Term
carbon capture and storage (ccs)
Definition
process of removing carbon dioxide gas fromm coal-burning power and industrial plants and storing it somewhere(usually underground or under the seabed) so that it is not releasesd into the atmosphere, essentially forever.
Term
carbon cycle
Definition
cyclic movement of carbon in different chemical forms from the environment to organisms and then back to the environment
Term
carcinogen
Definition
chemicals, ionizing radiation, and viruses that cause or promote the developmentn of cancer.
Term
carnivore
Definition
animal that feeds on other animals
Term
carrying capacity (K)
Definition
maximum population of a particular species tht a given habitat can support over a given priod
Term
CCS
Definition
(see carbon capture and storage)
Term
cell
Definition
smallest living unit of an organism. each cell is encased in an outer membrane or wall and contain s genetic material (DNA) and other parts to perform its life function.. Organisms such a bacteria consists of only one cell, but most organisms contain many cells.
Term
cell theory
Definition
the idea that all living things are composed of cells; the most widely accepted scintific theory in biology
Term
CFCs
Definition
(see cholofluorocarbons)
Term
chain reaction
Definition
multiple nuclear fissions, taking place within a certain mass of a fissionable isotope, which release and enormous amount of energy in a short time.
Term
chemical
Definition
one of the millions of different elements and compunds found naturally and synthesized by humans
Term
chemical change
Definition
interaction between chemicals in which the chemical composition of the elements or compounds involved changes.
Term
chemical formula
Definition
shorthand way to show the number of atoms in the basic structural unit of a compound.
Term
chemical reaction
Definition
(see chemical change)
Term
chemosynthesis
Definition
process in wich certain organisms(mostly specialized bacteria) extract inorganic compunds from their environment and convert them into organic nutrient compounds without the presence of sunlight.
Term
chlorinated hydrocarbon
Definition
organic compound made up of atoms of carbon , hydrogen, and chlorine
Term
chlorofluorocarbon (CFCs)
Definition
organic compounds made up pf atoms of carbon, cholrine, and fluorine,
Term
CHP (combined heat and power)
Definition
(see cogeneration)
Term
chromosome
Definition
a grouping of genes and associated proteins in plants and animal cells that carry certain types of gentic information
Term
chronic malnutrition
Definition
faulty nutrition, caused by a deit that does not supply an individual with enough protein, essential fats, vitamins, minerals, and other nutrients needed for good health.
Term
chronic undernutrtion
Definition
conditions suffered by people who cannot grow of buy enough food to meet their basic energy needs. most chronically undernourished childeren live in developing countries and are likely to suffer from mental retardation and stunted growth and to die from infectious diseases.
Term
civil suit
Definition
court case brought to settle disputes of damages between one party and another
Term
clear-cutting
Definition
method of timber harvesting in which all trees in a forested area are removed in a single cutting
Term
climate
Definition
physical properties of the troposphere of an area based on analysis of its weather records over a long period (at least 30 years). the two main factors determining an area's climate are its average temperature, with its seasonal variations, and the average amount and distribution
Term
climate tipping point
Definition
point at which an environmental problem reaches a threshold level where scientists fear it could cause irreversible climate disruption.
Term
climax community
Definition
(see mature community)
Term
closed-loop recycling
Definition
(see primary recycling)
Term
coal
Definition
solid, combustible mixture of organic compounds with 30-98% carbon by weight, mixed with various amounts of water and small amounts of sulfur and nitrogen compounds. it forms in several stages as the remains of plants are subjected to heat and pressure over millions of years.
Term
coal gasification
Definition
conversion of solid coal to synthetic natural gas (SNG)
Term
coal liquefaction
Definition
conversion of solid coal to a liquid hydrocarbon fuel such as synthetic gasoline or methanol.
Term
coastal wetland
Definition
land along a coastline,extending inland from an estuary that is covered with salt water all or part of the year.
Term
coastal zone
Definition
warm, nutrient-rich, shallow part of the ocean that extends from the hightide mark on land to the edge of a shelflike extension of continental shelf.
Term
coevolution
Definition
evolution in which two or more species interact and exert selective pressures on each other that can lead each species to undergo adaption.
Term
cogeneration
Definition
production of two useful forms of energy, such as high-temerature heat or steam and electricity, from the same fuel source.
Term
cold front
Definition
leading edge of an advancing mass of cols air
Term
combined heat and power(chp) production
Definition
(see congeneration)
Term
commensalism
Definition
an interaction between organisms of different species in ehich one type of organism benefits and the other type is neither helped nor harmed to any great degree.
Term
commercial extinction
Definition
deletion of the population of a wild species used as a resource to a level at which it is no longer profitanle to harvest the species.
Term
commercial inorganic fertillizer
Definition
comp=mercially prepared mixture of inorganic plant nutrients such as nitrates, phosphates, and potassium spplied to the soil to restore fertility and increase crop yields.
Term
commercial forest
Definition
(see tree plantation)
Term
common law
Definition
a body of unwritten rules and principles derived from court decisions along with commonly accepted practices, or norms, within a society.
Term
common-property resouce
Definition
resource that is owned jointly by a large group of individuals.
Term
community
Definition
population of all species living and interacting in an area at a paticular time.
Term
competition
Definition
two or more individual organisms of a single species(interaspecific competition)or two or more individuals of different species(interspefic competition) attempting to use the same scarce resources in the same ecosystem.
Term
compost
Definition
partially decomposed organic plant and animal matter used as a soil conditioner or feritlizer
Term
compound
Definition
combination of atoms, or oppositelu charged ions, of two or more elements held together by attractive forces called chemical bonds.
Term
concetration
Definition
amount of a chemical in a particular volume or weight of air, water, soil, or other medium
Term
coniferous evergreen plants
Definition
cone-bearing plants(such as spruces, pines, and firs) that keep some of their narrow, pointed leaves(needles) all year.
Term
coniferous trees
Definition
cone-bearing trees, mostly evergreens, that have needles-shaped or scalelike leaves. they produce wood known commercially as softwood.
Term
conservation
Definition
sensible and careful use of natural resources by humans. people with this view are called conversationists.
Term
conversation biology
Definition
multidisciplinary science created to deal with the crisisof maintaining the genes, species, communities, and ecosystems that make up earth's biological diversity. its goals are to invesitgate human inpacts on biodiversity and to develop practical approaches to preserving biodiversity.
Term
conservationist
Definition
person cnocerned with using natural areas and wildlife in ways that sustain them for current and future generations of humans and other forms of life.
Term
consumer
Definition
organisms that cannot synthesize the organic nutrients it needs and get its organic nutrients by feeding on the tissues of producers or of other consumers; generally divided into primary consumers(herbivores), secondary(carnivores), tertiary(higher-level)consumers, omnivores and detrivores(decomposers and detrius feeders). in economics, one who uses economic goods.
Term
contour farming
Definition
plowing and planting across the changing slope of land, rather than in straight lines, to help retain water and reduce soil erosion
Term
contour strip mining
Definition
formm of surface mining used on hilly or mountainous terrian. a power shovel cuts a series of terraces into the side of a hill. an earthmover removes the overburden, and a power shovel extracts the coal. the overbruden from each new terrace is dumped onto the one below.
Term
controlled burning
Definition
plowing and planting across the changing slope of land, rather than in straight lines, to help retain water and reduce soil erosion.
Term
conventional burning
Definition
deliberately set, carefully controlled surface fires that reduces flammanle litter and decrease the chance of damage.
Term
conventional-tillage farming
Definition
crop cultivation method in which a planting surface is made by plowing land, breaking up the exposed soil, and then smoothing the surface.
Term
convergent plate boundary
Definition
area where the earth's lithospheric plates are pused together.
Term
coral reef
Definition
formation produces by massive colonies containing billions of tiny coral animals, called polyps, that secrete a stony substance(calcium carbonate) around themselves for protecrion. when the corals die, their empty outer skeleton form layers and cause the reef to grow. coral reefs are found in coastal zones of warm tropical and subtropical oceans.
Term
core
Definition
inner zone of earth. it consists of a soild inner core and a liquid outer core
Term
corrective feedback loop
Definition
(see negative feedback loop)`
Term
cost-benefit analysis
Definition
a comparison of estimated cost and benefits of action such as implementing a pollution control regulation, building a dam over a river, or preserving an area of forest.
Term
critical mass
Definition
amount of fissionable nuclei needed to sustain a nuclear fission chain reaction
Term
crop rotation
Definition
planting a field, or an area of a field, with different crops from year to year to reduce soil nutreint depletion. a plant such as corn, tabacco, or cotton, which removes large amounts of nitrogen from the soil, is planted one year. the next year a legume such as soybeans, ehich adds nitrogen to the soil, is planted.
Term
crown fire
Definition
extremely hot forest fire that burns ground vegetation and treetops.
Term
crude birth rate
Definition
annual number of live births per 1,000 people in the population of a geographic area at the midpoint of a given year.
Term
crude death rate
Definition
annual number of deaths per 1,000 people in the population of a geographic area at the midpoint of a given year.
Term
crude oil
Definition
gooey liquid consistiono mostly of hydrocarbon compounds and small amounts of compounds containing oxygen, sulfur, and nitrogen. extracted from underground accumulations, it is sent to planet to sustain future generations.
Term
crust
Definition
solid outer zone of the earth. it consists of oceanic crust and continental crust
Term
cultural carrying capacity
Definition
the limit on population frowth that would allow most people in an area or the world to live in reasonable comfort and freedom without impairing the ability of the planet to sustain future generations.
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