The atmosphere

Chemoautotroph
An organism that gains its metabolic energy using energy from chemical reactions, e.g. nitrifying bacteria in the nitrogen cycle.
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Ozone
Triatomic oxygen
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Stratosphere
The layer of the atmosphere that absorbs UV and contains the ozone layer. It is above the troposphere at an altitude of approximately six to 30 miles.
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Dynamic equilibrium
A combination of active processes that cancel out each others effects so that there is no overall change.
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Troposphere
The layer of the atmosphere below the stratosphere, from ground level to about six miles.
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Infrared Radiation
Long wavelength electromagnetic radiation emitted from warm objects.
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Nuclear fission
The release of energy during the joining of the nuclei of small atoms.
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Electromagnetic radiation
Energy in the form of energy waves with a range of frequencies.
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Global climate change
The various changes to the climate caused by increased energy being retained in the atmosphere as a result of human activities.
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Greenhouse effect
The natural processes by which atmospheric gases allow visable light to pass through but absorb infrared energy, causing heating.
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Enhanced greenhouse effect
An alternative name for global climate change.
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Tropospheric ozone
Ozone in the troposphere, largely produced by human activities.
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El Nino
The name givento the reversal of the equatorial Pacific Ocean current that normally flows westwards.
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La Nina
The name given to the strengthening of the westward flowing equatorial pacific ocean current.
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Positive feedback mechanism
A situation where an initial change causes a reaction that increases the original change.
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Negative feedback mechanisms
A situation where an initial change causes a reaction that reduces the original change.
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Kyoto Protocol
The international agreement intended to control emmisions of greenhouse gases.
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HFC's
Hydrofluorocarbons are a group of chemicals used to replace CFC's.
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HCFC's
Hydrofluorocarbons are a group of chemicals used to replace CFC's
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MEDC
More economically developed country
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Anthropogenic
Something made or caused by human activities.
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CFC's
Chlorofluorocarbons are pollutants that cause ozone depletion and contribute to global climate change.
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Infiltration
The process by which surface water enters the ground between the particles of soil or rock.
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Ultraviolet light
High energy electromagnetic radiation including the short wavelength radiation emitted from the sun. Its energy can cause chemical reactions to take place, such as in the ozone layer or sunburn and DNA damage.
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Montreal protocol
Interanational agreement that has controlled the release of ozone-depleting substances.
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Other cards in this set

Card 2

Front

Triatomic oxygen

Back

Ozone

Card 3

Front

The layer of the atmosphere that absorbs UV and contains the ozone layer. It is above the troposphere at an altitude of approximately six to 30 miles.

Back

Preview of the back of card 3

Card 4

Front

A combination of active processes that cancel out each others effects so that there is no overall change.

Back

Preview of the back of card 4

Card 5

Front

The layer of the atmosphere below the stratosphere, from ground level to about six miles.

Back

Preview of the back of card 5
View more cards

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