Final answer:
The correct way to prevent burns is to check the water temperature before a person enters the shower. Additional precautions involve handling hot substances with care, maintaining good ventilation, and responsibly managing flammable materials and heat sources.
Step-by-step explanation:
To prevent burns, the correct answer is d. check water temperature before the person enters the shower. This simple but effective measure ensures that the person won't be exposed to water that is too hot, which can cause scalding or burns. Other preventive tips from guidelines involving the handling of hot substances include ensuring that you are in a well-ventilated space, keeping flammable materials away from heat sources like Bunsen burners, and being careful around hot equipment or chemicals to prevent any burns.
Specifically, the warnings given are to be vigilant when handling hot water or glass, to work in a space that has adequate ventilation, to make sure Bunsen burners are turned off when not in use, to never expose chemicals to flames unless instructed, and to keep flammable chemicals sealed properly. These instructions are intended to minimize the risk of burns and maintain a safe environment when dealing with potential hazards.