Iipadi ezifunxayo ziyimfuneko nje kucoceko lwezinja ezihlala ngaphakathi okanye ekuqeqesheni amantshontsho, xa zihamba uhambo, zihleli ezihotele, kwizikhephe nkqu nakumntu ophethe izilwanyana zasekhaya.Umaleko ongaphakathi wemethi ufunxa kakhulu.Yongeze iipolymers ukubamba iibhaktheriya ezibangela ivumba elibi.Ukuxhaswa kweplastiki kukukhusela amanzi kwimigangatho, izihlalo zengalo, njl.