What type of injuries involves damage caused by fire or extreme temperatures?

The correct choice is thermal injuries, which specifically refer to damage to body tissues caused by fire, hot surfaces, scalding liquids, and extreme temperatures. These injuries can occur from exposure to flames, steam, or contact with heated objects, leading to varying degrees of burns depending on the severity and duration of the exposure. The classification of thermal injuries includes first-degree burns, which affect only the outer layer of skin, to more severe third-degree burns that may extend through the skin into deeper tissues.

In the context of burns, chemical burns result from exposure to corrosive substances; frostbite is associated with extreme cold affecting the skin and underlying tissues; and radiation burns occur due to exposure to radiation, such as sunburn or radiation therapy. Each of these injury types has distinct mechanisms and treatment protocols, but thermal injuries specifically address the effects of heat and fire.