Why do persons with Goldenhar’s syndrome exhibit speech delay

 

Why do persons with Goldenhar’s syndrome exhibit speech delay even if they may be able to listen with their unaffected ear?

In cases of sinusitis, the passages between the paranasal sinuses and nasal cavity are clogged rather than the nasal cavity itself by an excessive amount of mucus. So why does sinusitis result in breathing issues?

** please give me the correct answer with explanation. Also give me the conclusion as well because it is mandatory.