1. Shubka la xoojiyey iyo shubka lagu shubay, shubka la xoojiyey ee la xoojiyay ee dhammaan noocyada dhismayaasha warshadaha iyo madaniga ah, ilaalinta biyaha, gaadiidka, dekedaha, iyo mashaariicda dawladda hoose.
2. Ku habboon diyaarinta xoogga hore, xoogga sare, iska caabinta jeexjeexyada, dareeraha badan, shubka bamgareynta is-cufan iyo qalabka is-socodka flat.
3. Waxaa si weyn loogu isticmaali karaa dayactirka cad iyo dayactirka uumiga injineernimada iyo alaabta.
4. Waxay leedahay sibidhka silicate ee caadiga ah, silicate silicate, ash silicate silicate ash, silicate ash volcano.