The factors that affect water quality include where the water comes from, what is in the environment in the collection area and how it is treated....
New Zealand has over 200 species of freshwater macroinvertebrates. An invertebrate is an animal that lacks a backbone. ‘Macro’ means the invertebrates are large enough to...
Maintaining good water quality is important for healthy ecosystems and healthy humans. There are several national, regional and local government agencies that look after water quality:...
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