Mankhwala ndi mapulasitiki, mankhwala a m’nyumba, zomatira
Kuchita zinthu ndi mankhwala ndi mapolipulasiti Kale chemistri imawonedwa ngati »ufiti wakuda«, koma lero timakumana nacho pa sitepe iliyonse, ngakhale m’banja. Tikudziwanso kuti ndi »Crnim bikom« kapena zotsekemera zina tingatsuke zovala mosavuta. Kwa ambiri zikudziwika kuti kuchokera ku tetraethyl lead…
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