Final answer:
True, to signal a vehicle breakdown, raise the hood or turn on the flashers. Drowning individuals might not call for help, unlike the myth. In electrical storms, a car's metal body acts as a Faraday cage, protecting those inside.
Step-by-step explanation:
True, if your vehicle breaks down and you cannot call for help, you should indeed raise the hood or turn on your flashers. This is done to signal distress and alert other motorists that your vehicle is not operational and that you may require assistance. Alerting others is especially important for safety reasons, and doing so can help prevent accidents or collisions with your disabled vehicle. In contrast to this common safety practice, it is a myth that a person who is drowning will always be able to shout for help or wave their arms; often, they are unable to do so due to the nature of the situation.
During electrical storms, staying inside a car is generally safer because the car acts as a Faraday cage. If the car is struck by lightning or an active electrical wire falls onto it, the metal body of the car will protect those inside by directing the electricity around the outside of the vehicle, as long as they remain completely inside and do not touch any metal parts of the car's interior.