Ƙasa ita ce tushen kayan noman furanni, da wadatar tushen fure, da tushen abinci mai gina jiki, ruwa da iska.Tushen tsire-tsire suna shanye abubuwan gina jiki daga ƙasa don ciyarwa da bunƙasa kansu.Ƙasa ta ƙunshi ma'adanai, kwayoyin halitta, ruwa da iska.Ma'adinan da ke cikin soi...
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