Examlex
If you view a rainbow out your window while riding in a train, you'll see that
Warming Incoming Air
The process of increasing the temperature of air entering the respiratory system, typically performed by the nasal passages.
Moistening
The process of making something slightly wet or damp.
Filtering Out Dust
The process of removing dust particles from air or liquids, typically using a physical barrier or filtration system.
Oxygen
A chemical element with the symbol O, essential for cellular respiration in most living organisms and a major component of Earth's atmosphere.
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