Answer:
a medicine which promotes the secretion of sputum by the air passages, used to treat coughs.
Explanation:
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Answer: dentist
Explanation:
Dentists are specialize in dentistry, which is a branch of medicine which consist in the study, diagnosis, prevention and treatment of diseases related with the "mouth" or oral cavity. In other words, they diagnoses problems with the teeth and gums.
Answer:
getting more oxygen can help you breathe better and live longer.
Explanation: