 
 <translate> Breathing allows oxygens into the body. Living things need oxygen to survive. Survival leads to sustaining life.
So, the answer is sustaining life. <ibo> Ikuku na-eme ka ikuku oxygen banye n'ahụ. Ihe ndị dị ndụ chọrọ ikuku oxygen iji dịrị ndụ. Ịlanahụ na-eduga n'ịkwado ndụ. Ya mere, azịza ya bụ ịnọgide na-adị ndụ. 