Question

respiratory diseases such as asthma are caused by​

Answer 1

Answer:

Asthma is a chronic disorder involving soreness and swelling of the interior airway walls. It can be triggered by the inhalation of particles from the air. Physical activity or respiratory infections may also contribute. In an asthma attack, the inflamed airways become irritated during inhalation

Explanation:

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Answer 2

Answer:

Respiratory diseases may be caused by infection, by smoking tobacco, or by breathing in secondhand tobacco smoke, radon, asbestos, or other forms of air pollution.