Ni izihe nyungu zidasanzwe z'ibyuma bitagira umuyonga ugereranije n'ibindi bihumye?

1. Ubushyuhe bwo hejuru bwo guhangana nicyuma gikurura ibyuma.

2. Imiterere yumubiri wibyuma bikurura ibyuma bidafite imbaraga zo guhangana cyane.

3. Ubushobozi bwimbaraga zo gukurura ibyuma bidafite ingese, kubikoresho byo gukurura ibyuma, umutwaro ushobora kwihanganira urakomeye cyane, ushobora guhaza ibyo abantu bakeneye bisanzwe.

4. Imiterere yubukanishi bwibikoresho byo gukurura ibyuma nabyo birakomeye.