Me zai faru idan bututun birki ya tsufa?
Tsufawar bututun birki zai bayyana a hankali a hankali, zai sa motar ba tare da birki ba ta tsufa, don Allah a maye gurbinta da wuri-wuri, domin guje wa haɗarin tsaro. Siffofin bututun birki:
1, juriya ga bututun birki na ozone, ƙarancin zafin jiki da kuma dacewa da zafin jiki mai yawa yana da kyau, sassauci mai kyau, juriyar tsagewa, ƙarfin tensile mai yawa, aiki mai kyau, tasirin birki yana da karko, aminci, abin dogaro, mai dorewa;
2, tsawon rai na aiki, juriya ga lalacewa, ba mai sauƙin fashewa ba, ba mai sauƙin cire kai ba, kamannin murfin kariya ga muhalli na ƙarfe, ba mai sauƙin lalata ba;
3, amfani da haske mai yawa, tushen hasken wutar lantarki mai ƙarancin ƙarfi, sauƙin shigarwa, juriya ga girgizar ƙasa, juriya ga tasiri, babu hasken zafi, aminci da kwanciyar hankali, abin dogaro, ba tare da la'akari da watsawar zafi ba.
