Pakalipano, ndi chitukuko cha kupanga mafakitale padziko lonse lapansi, kukula kwa magwiritsidwe ntchito azinthu zosiyanasiyana zamchere kukukulirakulirabe, kaya ndi zitsulo zachitsulo kapena zopanda zitsulo, kugwiritsidwa ntchito kukuwonjezeka kwambiri.Zotsatira zake, kusakanikirana, kukula kwakukulu, ndi chitukuko chanzeru cha ...
Werengani zambiri