Ọnọdụ ugbu a, ubi textile ụlọ, sịntetik emep uta eri na-eme ka elu maka ụkọ eke emep uta eri na a nnukwu ọnụ ọgụgụ nke ngwa, sịntetik emep uta eri na mgbakwunye na izugbe elu arụmọrụ nke chemical emep uta eri, dị ka elu ike, ìhè arọ, mfe saa na kpo oku, oma el...
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