Pfupiso Kuwedzera kwemaindasitiri nehuwandu hwevanhu mumakumi emakore apfuura kwave kuri chimwe chezvinhu zvakakosha mukuderera kwehunhu hwemvura. Mamwe magasi anobva muzvigayo zvekuchenesa mvura ane chepfu uye anobvira moto, ayo anofanira kuonekwa, akadai sehydrogen sulfide, carbon dioxide, methane, uye ca...
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