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AP Environmental Science Vocabulary Backup > Chapter ? > Flashcards

Chapter ? Flashcards

1
Q

troposphere

A

the bottommost layer of the atmosphere; it extends to 11km (7 mi) to above sea level

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2
Q

statosphere

A

the layer of the atmosphere above the troposphere and below the mesosphere; it extends from 11km (7 mi) to 50 km (31 mi) above sea level

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3
Q

ozone layer

A

a portion of the stratosphere, roughly 17 - 30 km (10 - 19 mi) above sea level, that contains most of the ozone in the atmosphere

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4
Q

atmosphere pressure

A

the weight per unit area produced by a column of air

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5
Q

relative humidity

A

the ratio of water vapor given volume of air to the maximum amount the air could contain, for a given temperature.

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6
Q

convective circulation

A

a circular current (of air, water, magma, ect.) driven by temperature differences in the atmosphere, warm air that rises into the regions of lower atmosphere pressure, where it expands and cools and them descends and becomes denser, replacing warm air that is rising. the air picks up heat and moisture near ground level and prepared to rise again. continuing the process

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7
Q

weather

A

the local physical properties of the troposphere, such as temperature, pressure, pressure,humidity, cloudiness, and wind, over relatively short time periods

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8
Q

climate

A

the pattern of atmospheric conditions found across long geographic regions over long periods of time

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9
Q

front

A

the boundary between air masses that differ in temperature and moisture (and therefore density)

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10
Q

warm front

A

the boundary where a mass of warm air displaces a mass of colder air

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11
Q

cold front

A

the boundary where a mass of cold air displaces a mass of warmer air

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12
Q

high pressure system

A

an air mass with elevated atmospheric pressure, containing air that descends, typically bringing fair weather

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13
Q

low-pressure system

A

an air mass in which air moves towards the low atmospheric pressure at the center of the system and spirals upward, typically bringing clouds and precipitation

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14
Q

temperature inversion (thermal inversion)

A

a departure from the normal temperature distribution in the atmosphere, in which a packet of relatively cold air occurs near ground. with warmer air above it. the cold air, denser than the air above, traps pollutants near the ground and can thereby cause a build up of smog

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15
Q

inversion layer

A

in a temperature inversion, the band of air in which temperature rises with altitude (instead of falling with altitude, as temperature does normally)

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16
Q

Hadley cell

A

one of a pair of cells of convective circulation between the equator and 30 degrees north and south latitude that influence global climate patterns

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17
Q

polar cell

A

one of a pair of cells of convective circulation between the poles and 60 degrees north and south latitude that influence global climate patterns

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18
Q

ferrel cell

A

one of a pair of cells of convective circulation between the 30 degrees and 60 degrees north and south latitude that influence global climate change

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19
Q

Coriolis effect

A

the apparent deflection of north-south air currents to a partly east-west direction. caused by the faster spin of the regions near the equator than of the regions near the poles as a result of Earth’s rotation

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20
Q

hurricane

A

a cyclonic storm that forms over the ocean but can do damage upon arriving on land. a type of cyclonic or typhoon that usually forms over the atlantic sea ocean

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21
Q

tornado

A

a cyclonic storm in which funnel clouds pick up soil and objects, threatening life and causing great damage to property

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22
Q

air pollution

A

the act of polluting the air, or the condition of being polluted by air pollutants

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23
Q

air pollutants

A

gases and particulate material added to the atmosphere that can affect climate or harm people or other organisms

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24
Q

outdoor (ambient) air pollution

A

air pollution that occurs outdoors

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25
aerosals
very fine liquid droplets or solid particles aloft in the atmosphere
26
primary pollutant
a hazardous substance, such as soot or carbon monoxide, that is emitted into the troposphere in a form that is directly harmful
27
secondary pollutant
a hazardous substance produced through the reaction of substances added to the atmosphere with chemicals normally found in the atmosphere
28
residence time
(1) in a biogeochemical cycle, the amount of time a nutrient remains in a given pool or reservoir before moving to another (2) in the atmosphere, the amount of time a gas molecule or pollutant remains aloft
29
clean air act of 1970
revision of prior US legislation to control air pollution that set stricter standards for air quality, imposed limits for emissions from new stationary and malice sources, provided new funds for pollution control research, and enabled citizens to sue parties violating the standards
30
clean air act of 1990
US legislation that strengthened regulations pertaining to air quality standards, auto emissions, toxic air pollution, acid deposition, and depletion of the ozone layer, while also introducing market based incentives to reduce pollution
31
carbon monoxide (CO)
a colorless, odorless gas produced primarily by the incomplete combustion of fuel
32
sulfur dioxide (SO2)
a colorless gas that can result from the combustion of fuel. in the atmosphere, it may rect to form sulfur trioxide (SO3) and sulfuric acid, which may return to the earth in acid deposition
33
lead
a heavy metal that may be ingested through water or paint, or that may enter the atmosphere as a particulate pollutant through combustion of leaded gasoline or other processes. atmospheric lead deposited on land and water can enter the food chain, accumulate within body tissues, and cause lead poisoning in animals and in humans. an EPA criteria pollutant
34
volatile organic compound (VOC)
one of a large group of potentially harmful organic chemicals used in industrial processes. one of the six major pollutants whose emissions are monitored by the EPA and state agencies
35
particulate matter
solid or liquid particles small enough to be suspended in the atmosphere and able to damage respiratory tissues when inhaled. includes primary pollutants such a dust or soot as well as secondary pollutants such as sulfates and nitrates. an EPA criteria pollutant
36
nitrogen oxide (NOx)
one of a family of compounds that includes nitric oxide (NO) and nitrogen oxide (NO2)
37
scrubber
technology to chemically treat gases produced in combustion in order to reduce smoke stack emissions. these devices typically remove hazardous components and neutralize acidic gases, such as sulfur dioxide and hydrochloric acid, turning them into water and salt
38
industrial smog
"gray-air" smog caused by the incomplete combustion of coal or oil when burned
39
ozone-depleting substances
airborne chemicals, such as halocarbons, that destroy the ozone layer in the stratosphere
40
acid deposition
the settling of acidic or acid forming pollutants from the atmosphere onto Earth's surface, this may take place by precipitation, fog, gases, or deposition of dry particles
41
acid rain
acid deposition that takes place through rain
42
atmospheric deposition
the wet or dry deposition on land of a wide variety of pollutants, including mercury, nitrates, organochlorines, and others. acid deposition is one type of atmospheric deposition
43
indoor air pollution
air pollution that occurs indoors
44
nitrogen dioxide (NO2)
a foul smelling reddish brown gas that contributes to smog and acid deposition. it results when atmospheric nitrogen and oxygen react at high temperatures created by combustion engines. an EPA criteria pollutant
45
tropospheric ozone
ozone that occurs in the troposphere, where it is a secondary pollutant created by the interaction of sunlight, heat, nitrogen oxides, and volatile carbon-containing chemicals. a major component of smog, it can injure living tissues and cause respiratory problems. an EPA criteria pollutant
46
toxic air pollutant
air pollutant that is known to cause cancer, reproductive defects, or neurological development, immune system, or respiratory problems in humans, and or cause substantial ecological harm by affecting the health of nonhuman animals and plants. the clean air act of 1990 identifies 188 toxic air pollutants, ranging from the heavy metal mercury to VOCs such as benzene and methylene chloride
47
halocarbon
a class of human-made chemical compounds derived from simple hydro-carbons in which hydrogen atoms are replaced by halogen atoms such as bromine, fluorine, and chlorine. many halocarbons are ozone depleting substances and or greenhouse gases
48
chlorofluorocarbons (CFC)
a type of halocarbon consisting of only of carbon, hydrogen, fluorine, and chlorine. CFCs were used as refrigerants, fire extinguishers, propellants for aerosals spray cans, cleaners for electronics, and for making polystyrene foam. they were phased out under the Montreal protocol because they are ozone depleting substances that destroy stratospheric ozone
49
ozone hole
term popularly used to describe the thinning of the stratospheric ozone layer that occurs over Antartica each year, as a result of CFCs and other 03 depleting substances
50
Montreal protocol
international treaty ratified in 1987 in which 180 (now 196) signatory nations agreed to restrict production of CFCs in order to halt stratospheric 03 depletion. this was a protocol of the Vienna convention for the protection of the ozone layer. the Montreal protocol is widely considered the most successful effort to date in addressing a global environmental problem
51
global climate change
systematic change in aspects of Earth's climate, such as temperature, precipitation, and storm intensity, generally refers today to the global warming trend in global temperatures and the many associated with climate change
52
global warming
an increase in Earth's average surface temperature the term is most frequently used in reference to the pronounced global warming trend of recent years and decades. global warming is one aspect of global climate change and in turn drivers other components of climate change
53
greenhouse gases
a gas that absorbs infrared radiation released by Earth's surface and then warms the surface and troposphere by emitting energy, thus giving rise to the greenhouse effect. greenhouse gases include CO2, water vapor, O3, N2O, halocarbons, and methane (CH4)
54
greenhouse effect
the warming of Earth's surface and atmosphere (especially troposphere), caused by the energy emitted by greenhouse gases
55
radiative farling
the amount of change in thermal energy that a factor (such as greenhouse gas or an aerosol) cause in influencing Earth's temperature. positive forcing warms Earth's surface, where as negative forcing cools it
56
paleoclimate
climate in the geological past
57
proxy indicator
a surface of indirect evidence that serves as a proxy, or substitute, for direct measurement that sheds light on past climate. examples include data from ice cores, sediment cores, tree rings, packrat middens, and coral reefs
58
climate model
a computer program that combines what is known about weather patterns, atmospheric circulation, atmospheric-ocean interactions, and feedback mechanisms, in order to simulate climate processes
59
radiative focing
the amount of change in thermal energy that a factor (such as a greenhouse gas or an aerosol) causes in inlfuencing Earth's temperature. positive forcing warms Earth's surface whereas negative forcing cools Earth's surface
60
intergovernmental panel on climate change (IPCC)
an international panel of climate scientists and government officials estavlidhed in 1988 by the UN Environmental program and the world meteorological organization. the IPCC's mission is to assess and sythesize scientific research on global climate change and to offer guidence to the world's policy makers, primarily through periodic published reports
61
Milankovitch cycle
one of three types of variations on Earth's rotation and orbit around the sun that result in slight changes in the relative amount of solar radiation reaching Earth's surface at different latitudes. as the cycles proceed, they change the way solar radiation is distributed over Earth's surface and contribute to changes in atmospheric heating and circulation that have triggered glaciations and other climate changes
62
ocean acidification
the process by which today's oceans are becoming more acidic as a result of increased CO2 concentrations in the atmosphere. ocean acidification occurs as ocean water absorbs (O2 from the air and forms carbonic acid. this impairs the ability of corals and other organisms to build exoskeletons of calcium carbonate, imperiling coral reefs and the many organisms that depend on them
63
mitigation
the pursuit of strategies to lessen the severity of climate change, notability by reducing emissions of greenhouse gases
64
adaptation
the pursuit of strategies to protect ourselves from the impact of climate change
65
carbon capture
technologies or approaches that remove CO2 from power plant or other emissions, in an effort to mitigate global climate change. we are still a long way from developing adequate technology and secure storage space to accomplish this also called carbon storage
66
cap-and-trade
a permit trading system
67
U.N. framework convention on climate change
an international treaty signed in 1992 outlining a plan to reduce emissions of greenhouse gases. gave rise to the Kyoto protocol
68
Kyoto protocol
an international agreement drafted in 1997 that called for reducing, by 2012, 6 greenhouse gases to levels lower than their levels in 1990. it has been extended to 2020 until a replacement treaty can be reached
69
fee-and-dividend
a program of carbon taxes in which proceeds from the taxes are paid to consumers as a tax refund or "dividend". this strategy seeks to prevent consumers from losing money if polluters pass their costs along to them
70
carbon tax
a fee changed to entities that pollute by emitting CO2. a carbon tax gives polluters a financial incentive to reduce pollution and is thus foreseen as a way to address global climate change
71
carbon offsets
a voluntary payment to another entity intended to enable that entity to reduce the greenhouse gas emissions that one is unable or unwilling to reduce oneself. the payment thus offsets one's own emissions.
72
carbon-neutrality
the state in which an individual, business, or institution emits no net carbon to the atmosphere. this may be achieved by reducing carbon emissions and or employing carbon offsets to offset emissions
73
geoengineering
any of a suite of proposed efforts to cool Earth's climate by removing CO2 from the atmosphere or reflecting sunlight away from Earth's surface. such ideas are controversial and are not nearly ready to implement
74
carbon footprint
the cumulative amount of carbon, or CO2, that a person or institution emits and is indirectly responsible for emitting, into the atmosphere, contributing to global climate change

AP Environmental Science Vocabulary Backup (9 decks)

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