refrigerator
The air moves from the outside into the lungs through the windpipe.
Actually, it is quite similar to what happens in an air conditioning system. The coolant goes through a pump which forces it to go through tubes at the back of the refrigerator. Here the coolant releases its heat through the tube walls into the home. The coolant is cooled down in this process where it then goes back into the freezer/refrigerator portions of the appliance. There it picks up the heat from those chambers to be brought back outside the unit to start the process over again. Keeping these tubes/coils clean helps improve the efficiency of the appliance.
There is not a heater valve in a WV Passat. Instead, coolant moves through the heater core at all times.
A molecule of oxygen enters the body through the nose or mouth, travels down the trachea, passes through the bronchi and bronchioles, and finally reaches the alveoli in the lungs where oxygen diffuses into the bloodstream through the thin walls of the alveoli.
Generally the pump moves the coolant through the block, up into the back of the head(s), through the head(s), out the thermostat into the top of the radiator, through the radiator, out the bottom or side of the radiator and back to the pump.
The water pump is either driven by the fan belt or the timing belt on some newer vehicles. The pump moves coolant from the radiator, through the engine, and back into the radiator. The pump has a shaft with a pulley on one end and a pump rotor on the other end. When the pulley is spun by a belt, the rotor moves the coolant.
Actually, it always is when operational. The pressure is what moves the refrigerant or coolant (depending on whether you're referring to the air conditioning or the engine cooling system) through the system.The pressure raises the boiling point of the coolant.
electrons
The esophagus moves food via peristalsis, but no digestion occurs in the esophagus. It connects the mouth and stomach.
If you mean through the cells itself, that would be the endoplasmic reticulum but if you mean substances from the outside of the cell into the cell that is done by protein channels.
It moves mainly by radiating through gases.
which process moves food through pharynx