Question

If a car's is malfunctioning, people in the car will become ill when driving long distances, especially if the windows are closed.

Answer 1

The Carbon Monoxide will build up in the inside of the car by venting through, causing the passengers to breathe it. It will first make them ill, then kill them. They cannot detect this gas

Answer 2

If a car's A/C air conditioning system is malfunctioning

Step-by-step explanation:

When the Air conditioning system of a car is malfunctioning the car will become extremely hot especially when the windows are closed and the car is driving long distance and this might lead to heat stroke for the occupants of the car if the heat becomes extreme to bear.

when driving with the windows open,the inside of the car won't be so hot as with when the windows are closed this is regardless if the A/C system of the car is malfunctioning or not.