Allanimalsproducewaste.Wecallit“waste,”butweallknowitca...
问题详情：Allanimalsproducewaste.Wecallit“waste,”butweallknowitcanbeveryuseful.Insomepartsoftheworld,animalwaste,orpoop,iscollected,dried,andburnedforcookingandheating.36 TheChengduGiantPandaBree...