The nose serves all of the following functions EXCEPT . Question 18 options:
1) as a passageway for air movement
2) as the direct initiator of the cough reflex
3) warming and humidifying the air
4) cleansing the air

It’s 2, the nose is not the direct initiator of the cough reflex.

A  reaction  in which  energy  is  released  to the surroundings is called an exothermic  reaction. in this type of  reaction  the enthalpy, or stored  chemical energy, is lower for the products than the reactants. when ammonium nitrate is dissolved in water,  energyis  absorbed  and the water cools.