 Sababta keentay in dhakhaatiirta xilligaasi u qaataan in kala duwanaanshiyaha labada carruur ah ee kala jinsiga ahi ay la xidhiidho waayo-aragnimada ay dhakhaatiirtani heleen xilligaas oo u badnayn la macaamilka ragga gaar ahaan qalniinada ugu badan oo ay ku samayn jireen ragga ciidamada ku dhinta colaadihii dhinac walba ka qiiqayey iyo mararka qaarkood askarta maydka ah ee dhinta oo ay qalniino ku tababarasho ah ku samayn jireen, dumarkuna aad ayaa ay ugu yaraayeen ciidamada ama badankooda kumaba ay jirin. 