Answer:
Driver
Explanation:
You can't tell if the car is moving by looking at the driver as they are in the car with you
Answer:
prevents secretion of upper air passage
Explanation:
to prevent foods and drinks from falling down the airway which is called aspiration and may lead to pneumonia
Answer:
Conductors
Explanation: the substances which have a large number of free electrons and offer a low resistance are called conductors
Radiation
The fire radiates heat and the human body absorbs said heat.