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Terms for subject Environment (5171 entries)
acid rain (Rain having a pH less than 5.6. The acidity results from chemical reactions occurring when water, sulphur dioxide, and nitrogen oxides, generally released by industrial processes, are chemically transformed into sulphuric and nitric acids) sur nedbør
acidification (Addition of an acid to a solution until the pH falls below 7) forsuring
acidity (The state of being acid that is of being capable of transferring a hydrogen ion in solution) surhet
acidity degree (The amount of acid present in a solution, often expressed in terms of pH) surhetsgrad
acoustic comfort akustisk komfort
acoustic filter (A device employed to reject sound in a particular range of frequencies while passing sound in another range of frequencies) akustisk filter
acoustic insulation (The process of preventing the transmission of sound by surrounding with a nonconducting material) lydisolasjon
acoustic level (Physical quantity of sound measured, usually expressed in decibels) akustisk nivå
acoustic property (The characteristics found within a structure that determine the quality of sound in its relevance to hearing) akustisk egenskap
acoustical quality (The characteristics of a confined space that determines its ability to enable music and speech to be heard clearly within it) akustisk kvalitet
acoustics (The science of the production, transmission and effects of sound) akustikk
act (1. Something done voluntarily by a person, and of such a nature that certain legal consequences attach to it. 2. Documents, decrees, edicts, laws, judgments, etc.) lov
actinide (A group of 15 radioactive elements some of which occur naturally while others are produced in nuclear reactions. They include plutonium, americium and neptunium. The health hazard presented by the actinides, if they are released into the environment, comes from the potency of their radioactive characteristics. They are alpha-emitters, and therefore can cause intense localized damage in tissues if absorbed into the body) actinoid
actinium (A radioactive element of the actinide series, occurring as a decay product of uranium. It is used as an alpha particle source and in neutron production) actinium
action group (A collection of persons united to address specific sociopolitical or socioeconomic concerns) aksjonsgruppe
activated carbon (A powdered, granular or pelleted form of amorphous carbon characterized by a very large surface area per unit volume because of an enormous number of fine pores) aktivkull
activated sludge (Sludge that has been aerated and subjected to bacterial action; used to speed breakdown of organism matter in raw sewage during secondary waste treatment) aktivslam
active participation (The involvement, either by an individual or a group of individuals, in their own governance or other activities, with the purpose of exerting influence) aktiv deltakelse
active population (The number of people available and eligible for employment within a given enterprise, region or nation) yrkesaktiv befolkning
adaptable species tilpasningsdyktig art