Question

What are the nose/nasal cavity's main functions in the respiratory system?

Answer 1

Warm and clean the air before it moves to the lungs.

Step-by-step explanation:

Answer 2

The nasal cavity is the hollow pipe (your nostril and upwards) that is covered with hairs and muscus membrane. Its main functions are to warm, moisturise, and filter air before it entering the body.
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Puffin