Question

how are the dust particles that enter the respiratory system in the air expelled​

Answer 1

Answer:

by sneezing

Explanation:

Answer 2

the dust particles that enter the respiratory system in the air is expelled​ through-

• the air we breathe contains several dust particles.
• this air when enters our nasal tract , the fine hair and the mucus present in the nasal cavity trap the dust particles.
• thus, the dust particles present in the inhaled air get trapped in the nose while breathing.
• then, the air is passed to lungs through trachea, bronchi and bronchioles.
• the air in the lung is further filtered.