Question

d/b inhalation and exhalation​

Answer 1

Answer:

During inhalation, the lungs expand with air and oxygen diffuses across the lung's surface, entering the bloodstream. During exhalation, the lungs expel air and lung volume decreases.

Answer 2

Answer:

when we inhale oxgen in our body via

nostrils, it is called inhalation

when we exhale carbon dioxide from our body via nostrils , it is called exhalation