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IB ESS Topic 4.4 - Water pollution with complete solutions graded A+
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IB ESS Topic 4.4 - Water pollution with complete solutions graded A+
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IB ESS Topic 4.4 - Water pollutionpollution - correct answer ✔✔the addition of a substance or an agent to an environment by human
activity, at a rate greater than at which it can be rendered harmless by the environment, and which has
an appreciable effect on the organisms within it.
primary pollutant - correct answer ✔✔pollutants which are active on emission
secondary pollutant - correct answer ✔✔pollutants which are formed by primary pollutants undergoing
physical or chemical changes
non-point source pollution - correct answer ✔✔pollution which is released from numerous, widely
dispersed origins. May have many sources making it virtually impossible to detect exactly where it is
coming from.
point source pollution - correct answer ✔✔release of pollutants from a single, clearly identifiable site.
persistent organic pollutants (POPs) - correct answer ✔✔Chemicals, often manufactured as pesticides in
the past, which are resistant to breaking down and remain active in the environment for a long time.
biodegradable pollutants - correct answer ✔✔Pollutants which do not persist in the environment and
break down easily.
acute pollution - correct answer ✔✔large amounts of a pollutant are released over a short period of
time, causing a lot of harm
chronic pollution - correct answer ✔✔The long-term release of a pollutant, in small amounts.
Water pollution - correct answer ✔✔The contamination of bodies of water by pollutants either directly
or indirectly
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