Question: Wanne ne mafi kyawun misali na sake amfani?
Options:
amfani da na'urorin masu ƙarancin amfani da makamashi
wankewa da sake amfani da kofunan roba
amfani da kwalin madarar da ba komai a cikinsa a matsayin abin dasa furanni
amfani da kwanukan alminiyom wurin haɗa sabin abubuwa
Answer: D