Ko te whakarewa i te taha o te papa whakarewa-a-papa, ngohengohe, he tuarua ki te koura, he kaiwhakahaere pai rawa atu mo te wera me te hiko; Kaore e pa ana ki te wai me te hāora hāora, ka huri i te pango i te wa e kitea ana ki te ozone, te hauwai hake me te whanariki; Ko te nuinga o te nuinga o te waikawa ka taea te rewa tere i roto i te waikawa nitric waikawa me te waikawa whanariki wera. Ka taea e te waikawa hydrochloric te arai i te mata me te rewa i te Molten Alkali Hydroxide, Poroxide Alkali me te alkali Cynalide i te hau, i te aroaro ranei o te Oxygen; Ko te nuinga o nga tote hiriwa e aro ana ki te maama me te ngoikore i roto i te maha o nga waikawa.