Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Chemically, da masu daraja karafa ayan zama ƙasa da reactive fiye da mafi yawan abubuwa (duba daraja karfe). Suna yawanci ductile kuma suna da babban luster. A tarihi, karafa masu daraja suna da mahimmanci a matsayin kudin amma yanzu ana daukar su da farko a matsayin zuba jari da kayayyakin masana'antu. Zinare, azurfa, platinum, da palladium kowannensu yana da lambar ISO 4217 na kudin.  Tambaya: menene ma'adanai masu daraja suka kasance da muhimmanci?
kudin waje